31010100312 has 16 divisors (see below), whose sum is σ = 77525250840. Its totient is φ = 10336700096.

The previous prime is 31010100307. The next prime is 31010100379. The reversal of 31010100312 is 21300101013.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 646043733 + ... + 646043780.

Almost surely, 2^31010100312 is an apocalyptic number.

It is an amenable number.

31010100312 is an abundant number, since it is smaller than the sum of its proper divisors (46515150528).

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

31010100312 is a wasteful number, since it uses less digits than its factorization.

31010100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1292087522 (or 1292087518 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 31010100312 its reverse (21300101013), we get a palindrome (52310201325).

The spelling of 31010100312 in words is "thirty-one billion, ten million, one hundred thousand, three hundred twelve".