31312030203112 has 8 divisors (see below), whose sum is σ = 58710056630850. Its totient is φ = 15656015101552.

The previous prime is 31312030203089. The next prime is 31312030203133. The reversal of 31312030203112 is 21130203021313.

It can be written as a sum of positive squares in only one way, i.e., 25411338213156 + 5900691989956 = 5040966^2 + 2429134^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1957001887687 + ... + 1957001887702.

Almost surely, 2^{31312030203112} is an apocalyptic number.

It is an amenable number.

31312030203112 is a deficient number, since it is larger than the sum of its proper divisors (27398026427738).

31312030203112 is a wasteful number, since it uses less digits than its factorization.

31312030203112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3914003775395 (or 3914003775391 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 31312030203112 its reverse (21130203021313), we get a palindrome (52442233224425).

The spelling of 31312030203112 in words is "thirty-one trillion, three hundred twelve billion, thirty million, two hundred three thousand, one hundred twelve".