31213301313200 has 30 divisors (see below), whose sum is σ = 74989956405924. Its totient is φ = 12485320525120.

The previous prime is 31213301313193. The next prime is 31213301313223. The reversal of 31213301313200 is 231310331213.

It is a super-2 number, since 2×31213301313200² (a number of 28 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 39016626242 + ... + 39016627041.

Almost surely, 2^{31213301313200} is an apocalyptic number.

It is an amenable number.

31213301313200 is an abundant number, since it is smaller than the sum of its proper divisors (43776655092724).

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

31213301313200 is a wasteful number, since it uses less digits than its factorization.

31213301313200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78033253301 (or 78033253290 counting only the distinct ones).

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

Adding to 31213301313200 its reverse (231310331213), we get a palindrome (31444611644413).

The spelling of 31213301313200 in words is "thirty-one trillion, two hundred thirteen billion, three hundred one million, three hundred thirteen thousand, two hundred".