31320300008 has 8 divisors (see below), whose sum is σ = 58725562530. Its totient is φ = 15660150000.

The previous prime is 31320300007. The next prime is 31320300031. The reversal of 31320300008 is 80000302313.

It can be written as a sum of positive squares in only one way, i.e., 18501984484 + 12818315524 = 136022^2 + 113218^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×31320300008² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (31320300007) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1957518743 + ... + 1957518758.

Almost surely, 2^31320300008 is an apocalyptic number.

It is an amenable number.

31320300008 is a deficient number, since it is larger than the sum of its proper divisors (27405262522).

31320300008 is a wasteful number, since it uses less digits than its factorization.

31320300008 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3915037507 (or 3915037503 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

The spelling of 31320300008 in words is "thirty-one billion, three hundred twenty million, three hundred thousand, eight".