31311123203132 has 12 divisors (see below), whose sum is σ = 54795198078936. Its totient is φ = 15655352323440.

The previous prime is 31311123203119. The next prime is 31311123203179. The reversal of 31311123203132 is 23130232111313.

It is a super-2 number, since 2×31311123203132² (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, 51982658 + ... + 52581545.

It is an arithmetic number, because the mean of its divisors is an integer number (4566266506578).

Almost surely, 2^{31311123203132} is an apocalyptic number.

It is an amenable number.

31311123203132 is a deficient number, since it is larger than the sum of its proper divisors (23484074875804).

31311123203132 is a wasteful number, since it uses less digits than its factorization.

31311123203132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104639068 (or 104639066 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 31311123203132 its reverse (23130232111313), we get a palindrome (54441355314445).

The spelling of 31311123203132 in words is "thirty-one trillion, three hundred eleven billion, one hundred twenty-three million, two hundred three thousand, one hundred thirty-two".