31132343564 has 48 divisors (see below), whose sum is σ = 62594568960. Its totient is φ = 13271912640.

The previous prime is 31132343551. The next prime is 31132343569. The reversal of 31132343564 is 46534323113.

It is not an unprimeable number, because it can be changed into a prime (31132343569) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5108159 + ... + 5114249.

It is an arithmetic number, because the mean of its divisors is an integer number (1304053520).

Almost surely, 2^31132343564 is an apocalyptic number.

It is an amenable number.

31132343564 is an abundant number, since it is smaller than the sum of its proper divisors (31462225396).

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

31132343564 is a wasteful number, since it uses less digits than its factorization.

31132343564 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7038 (or 7036 counting only the distinct ones).

The product of its digits is 77760, while the sum is 35.

Adding to 31132343564 its reverse (46534323113), we get a palindrome (77666666677).

The spelling of 31132343564 in words is "thirty-one billion, one hundred thirty-two million, three hundred forty-three thousand, five hundred sixty-four".