31001301011312 has 80 divisors (see below), whose sum is σ = 63279571946400. Its totient is φ = 14672468459520.

The previous prime is 31001301011273. The next prime is 31001301011353. The reversal of 31001301011312 is 21311010310013.

It is a super-2 number, since 2×31001301011312² (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 (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2113381514 + ... + 2113396182.

It is an arithmetic number, because the mean of its divisors is an integer number (790994649330).

Almost surely, 2^{31001301011312} is an apocalyptic number.

It is an amenable number.

31001301011312 is an abundant number, since it is smaller than the sum of its proper divisors (32278270935088).

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

31001301011312 is a wasteful number, since it uses less digits than its factorization.

31001301011312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20074 (or 20068 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31001301011312 its reverse (21311010310013), we get a palindrome (52312311321325).

The spelling of 31001301011312 in words is "thirty-one trillion, one billion, three hundred one million, eleven thousand, three hundred twelve".