31130443332 has 72 divisors (see below), whose sum is σ = 79354635360. Its totient is φ = 10289410560.

The previous prime is 31130443261. The next prime is 31130443363. The reversal of 31130443332 is 23334403113.

31130443332 is a `hidden beast` number, since 311 + 304 + 43 + 3 + 3 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 31130443296 and 31130443305.

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 23 ways as a sum of consecutive naturals, for example, 9821844 + ... + 9825012.

Almost surely, 2^31130443332 is an apocalyptic number.

It is an amenable number.

31130443332 is an abundant number, since it is smaller than the sum of its proper divisors (48224192028).

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

31130443332 is a wasteful number, since it uses less digits than its factorization.

31130443332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5393 (or 5388 counting only the distinct ones).

The product of its (nonzero) digits is 7776, while the sum is 27.

Adding to 31130443332 its reverse (23334403113), we get a palindrome (54464846445).

The spelling of 31130443332 in words is "thirty-one billion, one hundred thirty million, four hundred forty-three thousand, three hundred thirty-two".