31331212001300 has 36 divisors (see below), whose sum is σ = 68014670607996. Its totient is φ = 12527703129600.

The previous prime is 31331212001263. The next prime is 31331212001333. The reversal of 31331212001300 is 310021213313.

It can be written as a sum of positive squares in 6 ways, for example, as 471098285956 + 30860113715344 = 686366^2 + 5555188^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 59507477 + ... + 60031676.

Almost surely, 2^{31331212001300} is an apocalyptic number.

It is an amenable number.

31331212001300 is an abundant number, since it is smaller than the sum of its proper divisors (36683458606696).

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

31331212001300 is a wasteful number, since it uses less digits than its factorization.

31331212001300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119541788 (or 119541781 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31331212001300 its reverse (310021213313), we get a palindrome (31641233214613).

The spelling of 31331212001300 in words is "thirty-one trillion, three hundred thirty-one billion, two hundred twelve million, one thousand, three hundred".