113311123131 has 16 divisors (see below), whose sum is σ = 153350064000. Its totient is φ = 74406666048.

The previous prime is 113311123127. The next prime is 113311123141. The reversal of 113311123131 is 131321113311.

It is not a de Polignac number, because 113311123131 - 2² = 113311123127 is a prime.

It is a super-2 number, since 2×113311123131² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 113311123098 and 113311123107.

It is not an unprimeable number, because it can be changed into a prime (113311123141) 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, 3420415 + ... + 3453383.

It is an arithmetic number, because the mean of its divisors is an integer number (9584379000).

Almost surely, 2^113311123131 is an apocalyptic number.

113311123131 is a deficient number, since it is larger than the sum of its proper divisors (40038940869).

113311123131 is a wasteful number, since it uses less digits than its factorization.

113311123131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50138.

The product of its digits is 162, while the sum is 21.

Adding to 113311123131 its reverse (131321113311), we get a palindrome (244632236442).

The spelling of 113311123131 in words is "one hundred thirteen billion, three hundred eleven million, one hundred twenty-three thousand, one hundred thirty-one".