11312531768 has 32 divisors (see below), whose sum is σ = 21381570000. Its totient is φ = 5610881280.

The previous prime is 11312531767. The next prime is 11312531773. The reversal of 11312531768 is 86713521311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312531767) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 958463 + ... + 970193.

Almost surely, 2^11312531768 is an apocalyptic number.

It is an amenable number.

11312531768 is a deficient number, since it is larger than the sum of its proper divisors (10069038232).

11312531768 is a wasteful number, since it uses less digits than its factorization.

11312531768 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12695 (or 12691 counting only the distinct ones).

The product of its digits is 30240, while the sum is 38.

The spelling of 11312531768 in words is "eleven billion, three hundred twelve million, five hundred thirty-one thousand, seven hundred sixty-eight".