Search a number
-
+
1311223131410 = 251747451316631
BaseRepresentation
bin10011000101001010111…
…111010010110100010010
311122100111101122121012212
4103011022333102310102
5132440341110201120
62442211222152122
7163506221502203
oct23051277226422
94570441577185
101311223131410
114660a5301a05
12192159b82642
13968563178ba
144766bd3d5aa
152419438c6c5
hex1314afd2d12

1311223131410 has 32 divisors (see below), whose sum is σ = 2362217945472. Its totient is φ = 524041367040.

The previous prime is 1311223131401. The next prime is 1311223131419. The reversal of 1311223131410 is 141313221131.

It is an interprime number because it is at equal distance from previous prime (1311223131401) and next prime (1311223131419).

It is a super-2 number, since 2×13112231314102 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1311223131419) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78833795 + ... + 78850425.

It is an arithmetic number, because the mean of its divisors is an integer number (73819310796).

Almost surely, 21311223131410 is an apocalyptic number.

1311223131410 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1311223131410 is a deficient number, since it is larger than the sum of its proper divisors (1050994814062).

1311223131410 is a wasteful number, since it uses less digits than its factorization.

1311223131410 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22898.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1311223131410 its reverse (141313221131), we get a palindrome (1452536352541).

The spelling of 1311223131410 in words is "one trillion, three hundred eleven billion, two hundred twenty-three million, one hundred thirty-one thousand, four hundred ten".

Divisors: 1 2 5 10 1747 3494 4513 8735 9026 16631 17470 22565 33262 45130 83155 166310 7884211 15768422 29054357 39421055 58108714 75055703 78842110 145271785 150111406 290543570 375278515 750557030 131122313141 262244626282 655611565705 1311223131410