31331133212000 has 96 divisors (see below), whose sum is σ = 81508864731840. Its totient is φ = 11795250124800.

The previous prime is 31331133211993. The next prime is 31331133212039. The reversal of 31331133212000 is 21233113313.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 230307980 + ... + 230443979.

It is an arithmetic number, because the mean of its divisors is an integer number (849050674290).

Almost surely, 2^{31331133212000} is an apocalyptic number.

It is an amenable number.

31331133212000 is an abundant number, since it is smaller than the sum of its proper divisors (50177731519840).

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

31331133212000 is a wasteful number, since it uses less digits than its factorization.

31331133212000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 460752001 (or 460751983 counting only the distinct ones).

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

Adding to 31331133212000 its reverse (21233113313), we get a palindrome (31352366325313).

The spelling of 31331133212000 in words is "thirty-one trillion, three hundred thirty-one billion, one hundred thirty-three million, two hundred twelve thousand".