31023132133312 has 28 divisors (see below), whose sum is σ = 67158030358296. Its totient is φ = 14101423696640.

The previous prime is 31023132133307. The next prime is 31023132133361. The reversal of 31023132133312 is 21333123132013.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22033473823 + ... + 22033475230.

Almost surely, 2^{31023132133312} is an apocalyptic number.

31023132133312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

31023132133312 is an abundant number, since it is smaller than the sum of its proper divisors (36134898224984).

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

31023132133312 is a wasteful number, since it uses less digits than its factorization.

31023132133312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44066949076 (or 44066949066 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 31023132133312 its reverse (21333123132013), we get a palindrome (52356255265325).

The spelling of 31023132133312 in words is "thirty-one trillion, twenty-three billion, one hundred thirty-two million, one hundred thirty-three thousand, three hundred twelve".