31103321132 has 12 divisors (see below), whose sum is σ = 58617797616. Its totient is φ = 14355378960.

The previous prime is 31103321089. The next prime is 31103321143. The reversal of 31103321132 is 23112330113.

It is a super-2 number, since 2×31103321132² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 299070344 + ... + 299070447.

It is an arithmetic number, because the mean of its divisors is an integer number (4884816468).

Almost surely, 2^31103321132 is an apocalyptic number.

It is an amenable number.

31103321132 is a deficient number, since it is larger than the sum of its proper divisors (27514476484).

31103321132 is a wasteful number, since it uses less digits than its factorization.

31103321132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 598140808 (or 598140806 counting only the distinct ones).

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

Adding to 31103321132 its reverse (23112330113), we get a palindrome (54215651245).

The spelling of 31103321132 in words is "thirty-one billion, one hundred three million, three hundred twenty-one thousand, one hundred thirty-two".