31321264132 has 6 divisors (see below), whose sum is σ = 54812212238. Its totient is φ = 15660632064.

The previous prime is 31321264109. The next prime is 31321264147. The reversal of 31321264132 is 23146212313.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 29109819456 + 2211444676 = 170616^2 + 47026^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31321264132.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3915158013 + ... + 3915158020.

Almost surely, 2^31321264132 is an apocalyptic number.

It is an amenable number.

31321264132 is a deficient number, since it is larger than the sum of its proper divisors (23490948106).

31321264132 is a wasteful number, since it uses less digits than its factorization.

31321264132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7830316037 (or 7830316035 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 31321264132 its reverse (23146212313), we get a palindrome (54467476445).

The spelling of 31321264132 in words is "thirty-one billion, three hundred twenty-one million, two hundred sixty-four thousand, one hundred thirty-two".