31212103133300 has 36 divisors (see below), whose sum is σ = 67980191030976. Its totient is φ = 12438771717600.

The previous prime is 31212103133297. The next prime is 31212103133359. The reversal of 31212103133300 is 333130121213.

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, 575841962 + ... + 575896161.

Almost surely, 2^{31212103133300} is an apocalyptic number.

It is an amenable number.

31212103133300 is an abundant number, since it is smaller than the sum of its proper divisors (36768087897676).

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

31212103133300 is a wasteful number, since it uses less digits than its factorization.

31212103133300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1151738408 (or 1151738401 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 23.

Adding to 31212103133300 its reverse (333130121213), we get a palindrome (31545233254513).

The spelling of 31212103133300 in words is "thirty-one trillion, two hundred twelve billion, one hundred three million, one hundred thirty-three thousand, three hundred".