31345232143132 has 12 divisors (see below), whose sum is σ = 54860998536400. Its totient is φ = 15670661132736.

The previous prime is 31345232143117. The next prime is 31345232143139. The reversal of 31345232143132 is 23134123254313.

It is a junction number, because it is equal to n+sod(n) for n = 31345232143091 and 31345232143100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31345232143139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 488698632 + ... + 488762767.

Almost surely, 2^{31345232143132} is an apocalyptic number.

It is an amenable number.

31345232143132 is a deficient number, since it is larger than the sum of its proper divisors (23515766393268).

31345232143132 is a wasteful number, since it uses less digits than its factorization.

31345232143132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 977469420 (or 977469418 counting only the distinct ones).

The product of its digits is 155520, while the sum is 37.

Adding to 31345232143132 its reverse (23134123254313), we get a palindrome (54479355397445).

The spelling of 31345232143132 in words is "thirty-one trillion, three hundred forty-five billion, two hundred thirty-two million, one hundred forty-three thousand, one hundred thirty-two".