31002121133112 has 32 divisors (see below), whose sum is σ = 77505458918400. Its totient is φ = 10334019566304.

The previous prime is 31002121133077. The next prime is 31002121133131. The reversal of 31002121133112 is 21133112120013.

It is a super-2 number, since 2×31002121133112² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 7 ways as a sum of consecutive naturals, for example, 15069673 + ... + 17002919.

It is an arithmetic number, because the mean of its divisors is an integer number (2422045591200).

Almost surely, 2^{31002121133112} is an apocalyptic number.

It is an amenable number.

31002121133112 is an abundant number, since it is smaller than the sum of its proper divisors (46503337785288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31002121133112 is a wasteful number, since it uses less digits than its factorization.

31002121133112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2601435 (or 2601431 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 21.

Adding to 31002121133112 its reverse (21133112120013), we get a palindrome (52135233253125).

It can be divided in two parts, 3100212 and 1133112, that added together give a palindrome (4233324).

The spelling of 31002121133112 in words is "thirty-one trillion, two billion, one hundred twenty-one million, one hundred thirty-three thousand, one hundred twelve".