31047235312 has 10 divisors (see below), whose sum is σ = 60154018448. Its totient is φ = 15523617648.

The previous prime is 31047235301. The next prime is 31047235313. The reversal of 31047235312 is 21353274013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31047235313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 970226088 + ... + 970226119.

Almost surely, 2^31047235312 is an apocalyptic number.

It is an amenable number.

31047235312 is a deficient number, since it is larger than the sum of its proper divisors (29106783136).

31047235312 is a wasteful number, since it uses less digits than its factorization.

31047235312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1940452215 (or 1940452209 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 31.

The spelling of 31047235312 in words is "thirty-one billion, forty-seven million, two hundred thirty-five thousand, three hundred twelve".