31312101130112 has 64 divisors (see below), whose sum is σ = 68052049430400. Its totient is φ = 14232438105600.

The previous prime is 31312101130043. The next prime is 31312101130139. The reversal of 31312101130112 is 21103110121313.

It is a tau number, because it is divible by the number of its divisors (64).

It is a super-2 number, since 2×31312101130112² (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, 65401037 + ... + 65878067.

It is an arithmetic number, because the mean of its divisors is an integer number (1063313272350).

Almost surely, 2^{31312101130112} is an apocalyptic number.

31312101130112 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31312101130112 is an abundant number, since it is smaller than the sum of its proper divisors (36739948300288).

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

31312101130112 is a wasteful number, since it uses less digits than its factorization.

31312101130112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 523675 (or 523663 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 20.

Adding to 31312101130112 its reverse (21103110121313), we get a palindrome (52415211251425).

The spelling of 31312101130112 in words is "thirty-one trillion, three hundred twelve billion, one hundred one million, one hundred thirty thousand, one hundred twelve".