31130111132 has 12 divisors (see below), whose sum is σ = 56356235880. Its totient is φ = 15028329456.

The previous prime is 31130111107. The next prime is 31130111149. The reversal of 31130111132 is 23111103113.

It is a self number, because there is not a number n which added to its sum of digits gives 31130111132.

It is a congruent number.

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, 134181398 + ... + 134181629.

It is an arithmetic number, because the mean of its divisors is an integer number (4696352990).

Almost surely, 2^31130111132 is an apocalyptic number.

It is an amenable number.

31130111132 is a deficient number, since it is larger than the sum of its proper divisors (25226124748).

31130111132 is a wasteful number, since it uses less digits than its factorization.

31130111132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 268363060 (or 268363058 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 31130111132 its reverse (23111103113), we get a palindrome (54241214245).

The spelling of 31130111132 in words is "thirty-one billion, one hundred thirty million, one hundred eleven thousand, one hundred thirty-two".