31331012101300 has 36 divisors (see below), whose sum is σ = 67990324794700. Its totient is φ = 12532030917120.

The previous prime is 31331012101283. The next prime is 31331012101481. The reversal of 31331012101300 is 310121013313.

It can be written as a sum of positive squares in 6 ways, for example, as 8208878232996 + 23122133868304 = 2865114^2 + 4808548^2 .

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, 1293525 + ... + 8020924.

Almost surely, 2^{31331012101300} is an apocalyptic number.

It is an amenable number.

31331012101300 is an abundant number, since it is smaller than the sum of its proper divisors (36659312693400).

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

31331012101300 is a wasteful number, since it uses less digits than its factorization.

31331012101300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9348100 (or 9348093 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 31331012101300 its reverse (310121013313), we get a palindrome (31641133114613).

The spelling of 31331012101300 in words is "thirty-one trillion, three hundred thirty-one billion, twelve million, one hundred one thousand, three hundred".