113031000031 has 4 divisors (see below), whose sum is σ = 113448088864. Its totient is φ = 112613911200.

The previous prime is 113030999987. The next prime is 113031000077. The reversal of 113031000031 is 130000130311.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113031000031 - 2⁹ = 113030999519 is a prime.

It is a super-2 number, since 2×113031000031² (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 = 113030999975 and 113031000020.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113032000031) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 208544010 + ... + 208544551.

It is an arithmetic number, because the mean of its divisors is an integer number (28362022216).

Almost surely, 2^113031000031 is an apocalyptic number.

113031000031 is a deficient number, since it is larger than the sum of its proper divisors (417088833).

113031000031 is an equidigital number, since it uses as much as digits as its factorization.

113031000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 417088832.

The product of its (nonzero) digits is 27, while the sum is 13.

Adding to 113031000031 its reverse (130000130311), we get a palindrome (243031130342).

The spelling of 113031000031 in words is "one hundred thirteen billion, thirty-one million, thirty-one", and thus it is an aban number.