31020023332113 has 4 divisors (see below), whose sum is σ = 41360031109488. Its totient is φ = 20680015554740.

The previous prime is 31020023332073. The next prime is 31020023332147. The reversal of 31020023332113 is 31123332002013.

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 31020023332113 - 2²⁴ = 31020006554897 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31020023332013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5170003888683 + ... + 5170003888688.

It is an arithmetic number, because the mean of its divisors is an integer number (10340007777372).

Almost surely, 2^{31020023332113} is an apocalyptic number.

It is an amenable number.

31020023332113 is a deficient number, since it is larger than the sum of its proper divisors (10340007777375).

31020023332113 is a wasteful number, since it uses less digits than its factorization.

31020023332113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10340007777374.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31020023332113 its reverse (31123332002013), we get a palindrome (62143355334126).

The spelling of 31020023332113 in words is "thirty-one trillion, twenty billion, twenty-three million, three hundred thirty-two thousand, one hundred thirteen".