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13103231031230 = 25231273673122131
BaseRepresentation
bin1011111010101101010101…
…1011100101011110111110
31201101122201200220021010112
42332223111123211132332
53204140404120444410
643511312523510022
72521451165032124
oct276532533453676
951348650807115
1013103231031230
1141a205a35343a
1215775b1688312
137408249acb52
143342b222b914
1517aca239e105
hexbead56e57be

13103231031230 has 64 divisors (see below), whose sum is σ = 24812032278528. Its totient is φ = 4972539559680.

The previous prime is 13103231031221. The next prime is 13103231031239. The reversal of 13103231031230 is 3213013230131.

It is an interprime number because it is at equal distance from previous prime (13103231031221) and next prime (13103231031239).

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a junction number, because it is equal to n+sod(n) for n = 13103231031196 and 13103231031205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13103231031239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 107227265 + ... + 107349395.

It is an arithmetic number, because the mean of its divisors is an integer number (387688004352).

Almost surely, 213103231031230 is an apocalyptic number.

13103231031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13103231031230 is a deficient number, since it is larger than the sum of its proper divisors (11708801247298).

13103231031230 is a wasteful number, since it uses less digits than its factorization.

13103231031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 125961.

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 13103231031230 its reverse (3213013230131), we get a palindrome (16316244261361).

The spelling of 13103231031230 in words is "thirteen trillion, one hundred three billion, two hundred thirty-one million, thirty-one thousand, two hundred thirty".

Divisors: 1 2 5 10 23 46 115 127 230 254 635 1270 2921 3673 5842 7346 14605 18365 29210 36730 84479 122131 168958 244262 422395 466471 610655 844790 932942 1221310 2332355 2809013 4664710 5618026 10728833 14045065 15510637 21457666 28090130 31021274 53644165 77553185 107288330 155106370 356744651 448587163 713489302 897174326 1783723255 2242935815 3567446510 4485871630 10317504749 20635009498 51587523745 56970569701 103175047490 113941139402 284852848505 569705697010 1310323103123 2620646206246 6551615515615 13103231031230