31002310212 has 48 divisors (see below), whose sum is σ = 74373778752. Its totient is φ = 10043982720.

The previous prime is 31002310189. The next prime is 31002310231. The reversal of 31002310212 is 21201320013.

It is a super-2 number, since 2×31002310212² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31002310191 and 31002310200.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 380703 + ... + 454905.

It is an arithmetic number, because the mean of its divisors is an integer number (1549453724).

Almost surely, 2^31002310212 is an apocalyptic number.

It is an amenable number.

31002310212 is an abundant number, since it is smaller than the sum of its proper divisors (43371468540).

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

31002310212 is a wasteful number, since it uses less digits than its factorization.

31002310212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75188 (or 75186 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31002310212 its reverse (21201320013), we get a palindrome (52203630225).

The spelling of 31002310212 in words is "thirty-one billion, two million, three hundred ten thousand, two hundred twelve".