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13101212230031 = 17941818979323
BaseRepresentation
bin1011111010100101110100…
…0110011110000110001111
31201101110112000011112111202
42332221131012132012033
53204122240312330111
643510340325540115
72521350152353262
oct276513506360617
951343460145452
1013101212230031
1141a12138351a2
12157712957463b
13740592681c23
1433416007acd9
1517abd5025b3b
hexbea5d19e18f

13101212230031 has 8 divisors (see below), whose sum is σ = 13886613417744. Its totient is φ = 12317449002880.

The previous prime is 13101212230021. The next prime is 13101212230049. The reversal of 13101212230031 is 13003221210131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 13101212230031 - 26 = 13101212229967 is a prime.

It is a super-2 number, since 2×131012122300312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13101212229985 and 13101212230012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13101212230021) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409473665 + ... + 409505658.

It is an arithmetic number, because the mean of its divisors is an integer number (1735826677218).

Almost surely, 213101212230031 is an apocalyptic number.

13101212230031 is a deficient number, since it is larger than the sum of its proper divisors (785401187713).

13101212230031 is an equidigital number, since it uses as much as digits as its factorization.

13101212230031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 818980281.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13101212230031 its reverse (13003221210131), we get a palindrome (26104433440162).

The spelling of 13101212230031 in words is "thirteen trillion, one hundred one billion, two hundred twelve million, two hundred thirty thousand, thirty-one".

Divisors: 1 17 941 15997 818979323 13922648491 770659542943 13101212230031