31002023133 has 32 divisors (see below), whose sum is σ = 46519159680. Its totient is φ = 20402807040.

The previous prime is 31002023099. The next prime is 31002023137. The reversal of 31002023133 is 33132020013.

It is a de Polignac number, because none of the positive numbers 2^k-31002023133 is a prime.

It is a super-2 number, since 2×31002023133² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31002023137) 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 31 ways as a sum of consecutive naturals, for example, 3251413 + ... + 3260933.

It is an arithmetic number, because the mean of its divisors is an integer number (1453723740).

Almost surely, 2^31002023133 is an apocalyptic number.

It is an amenable number.

31002023133 is a deficient number, since it is larger than the sum of its proper divisors (15517136547).

31002023133 is a wasteful number, since it uses less digits than its factorization.

31002023133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11066 (or 11060 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 31002023133 its reverse (33132020013), we get a palindrome (64134043146).

The spelling of 31002023133 in words is "thirty-one billion, two million, twenty-three thousand, one hundred thirty-three".