113233012031 has 16 divisors (see below), whose sum is σ = 115934087808. Its totient is φ = 110567652000.

The previous prime is 113233012019. The next prime is 113233012069. The reversal of 113233012031 is 130210332311.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113233012031 is a prime.

It is a super-2 number, since 2×113233012031² (a number of 23 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 = 113233011994 and 113233012012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113233012001) 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, 4909316 + ... + 4932326.

It is an arithmetic number, because the mean of its divisors is an integer number (7245880488).

Almost surely, 2^113233012031 is an apocalyptic number.

113233012031 is a deficient number, since it is larger than the sum of its proper divisors (2701075777).

113233012031 is a wasteful number, since it uses less digits than its factorization.

113233012031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23782.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 113233012031 its reverse (130210332311), we get a palindrome (243443344342).

The spelling of 113233012031 in words is "one hundred thirteen billion, two hundred thirty-three million, twelve thousand, thirty-one".