31313200213132 has 6 divisors (see below), whose sum is σ = 54798100372988. Its totient is φ = 15656600106564.

The previous prime is 31313200213123. The next prime is 31313200213153. The reversal of 31313200213132 is 23131200231313.

It is a junction number, because it is equal to n+sod(n) for n = 31313200213097 and 31313200213106.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3914150026638 + ... + 3914150026645.

Almost surely, 2^{31313200213132} is an apocalyptic number.

It is an amenable number.

31313200213132 is a deficient number, since it is larger than the sum of its proper divisors (23484900159856).

31313200213132 is a wasteful number, since it uses less digits than its factorization.

31313200213132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7828300053287 (or 7828300053285 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 31313200213132 its reverse (23131200231313), we get a palindrome (54444400444445).

The spelling of 31313200213132 in words is "thirty-one trillion, three hundred thirteen billion, two hundred million, two hundred thirteen thousand, one hundred thirty-two".