31313201132 has 12 divisors (see below), whose sum is σ = 54799437336. Its totient is φ = 15656219040.

The previous prime is 31313201113. The next prime is 31313201141. The reversal of 31313201132 is 23110231313.

It is an unprimeable number.

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, 173507 + ... + 304517.

It is an arithmetic number, because the mean of its divisors is an integer number (4566619778).

Almost surely, 2^31313201132 is an apocalyptic number.

It is an amenable number.

31313201132 is a deficient number, since it is larger than the sum of its proper divisors (23486236204).

31313201132 is a wasteful number, since it uses less digits than its factorization.

31313201132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190768 (or 190766 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31313201132 its reverse (23110231313), we get a palindrome (54423432445).

The spelling of 31313201132 in words is "thirty-one billion, three hundred thirteen million, two hundred one thousand, one hundred thirty-two".