31022133011312 has 20 divisors (see below), whose sum is σ = 62177982114120. Its totient is φ = 14976202143168.

The previous prime is 31022133011299. The next prime is 31022133011323. The reversal of 31022133011312 is 21311033122013.

It is a super-2 number, since 2×31022133011312² (a number of 28 digits) contains 22 as substring.

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, 33429022178 + ... + 33429023105.

It is an arithmetic number, because the mean of its divisors is an integer number (3108899105706).

Almost surely, 2^{31022133011312} is an apocalyptic number.

It is an amenable number.

31022133011312 is an abundant number, since it is smaller than the sum of its proper divisors (31155849102808).

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

31022133011312 is a wasteful number, since it uses less digits than its factorization.

31022133011312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66858045320 (or 66858045314 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 31022133011312 its reverse (21311033122013), we get a palindrome (52333166133325).

The spelling of 31022133011312 in words is "thirty-one trillion, twenty-two billion, one hundred thirty-three million, eleven thousand, three hundred twelve".