113131230233 has 12 divisors (see below), whose sum is σ = 139342908852. Its totient is φ = 91265529600.

The previous prime is 113131230221. The next prime is 113131230253. The reversal of 113131230233 is 332032131311.

It can be written as a sum of positive squares in 2 ways, for example, as 33830980624 + 79300249609 = 183932^2 + 281603^2 .

It is not a de Polignac number, because 113131230233 - 2¹⁰ = 113131229209 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 113131230199 and 113131230208.

It is not an unprimeable number, because it can be changed into a prime (113131230203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 67905068 + ... + 67906733.

It is an arithmetic number, because the mean of its divisors is an integer number (11611909071).

Almost surely, 2^113131230233 is an apocalyptic number.

It is an amenable number.

113131230233 is a deficient number, since it is larger than the sum of its proper divisors (26211678619).

113131230233 is a wasteful number, since it uses less digits than its factorization.

113131230233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135811832 (or 135811825 counting only the distinct ones).

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

Adding to 113131230233 its reverse (332032131311), we get a palindrome (445163361544).

The spelling of 113131230233 in words is "one hundred thirteen billion, one hundred thirty-one million, two hundred thirty thousand, two hundred thirty-three".