31130232031113 has 4 divisors (see below), whose sum is σ = 41506976041488. Its totient is φ = 20753488020740.

The previous prime is 31130232031111. The next prime is 31130232031121. The reversal of 31130232031113 is 31113023203113.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 31130232031113 - 2¹ = 31130232031111 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31130232031111) 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 3 ways as a sum of consecutive naturals, for example, 5188372005183 + ... + 5188372005188.

It is an arithmetic number, because the mean of its divisors is an integer number (10376744010372).

Almost surely, 2^{31130232031113} is an apocalyptic number.

It is an amenable number.

31130232031113 is a deficient number, since it is larger than the sum of its proper divisors (10376744010375).

31130232031113 is a wasteful number, since it uses less digits than its factorization.

31130232031113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10376744010374.

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 31130232031113 its reverse (31113023203113), we get a palindrome (62243255234226).

The spelling of 31130232031113 in words is "thirty-one trillion, one hundred thirty billion, two hundred thirty-two million, thirty-one thousand, one hundred thirteen".