31130020132 has 24 divisors (see below), whose sum is σ = 54652752000. Its totient is φ = 15514986816.

The previous prime is 31130020087. The next prime is 31130020177. The reversal of 31130020132 is 23102003113.

It is an interprime number because it is at equal distance from previous prime (31130020087) and next prime (31130020177).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6673633 + ... + 6678295.

It is an arithmetic number, because the mean of its divisors is an integer number (2277198000).

Almost surely, 2^31130020132 is an apocalyptic number.

It is an amenable number.

31130020132 is a deficient number, since it is larger than the sum of its proper divisors (23522731868).

31130020132 is a wasteful number, since it uses less digits than its factorization.

31130020132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9675 (or 9673 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 31130020132 its reverse (23102003113), we get a palindrome (54232023245).

The spelling of 31130020132 in words is "thirty-one billion, one hundred thirty million, twenty thousand, one hundred thirty-two".