31304120200 has 48 divisors (see below), whose sum is σ = 72794286180. Its totient is φ = 12519548160.

The previous prime is 31304120189. The next prime is 31304120219. The reversal of 31304120200 is 202140313.

It is a happy number.

It can be written as a sum of positive squares in 6 ways, for example, as 6209124804 + 25094995396 = 78798^2 + 158414^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1822854 + ... + 1839946.

Almost surely, 2^31304120200 is an apocalyptic number.

It is an amenable number.

31304120200 is an abundant number, since it is smaller than the sum of its proper divisors (41490165980).

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

31304120200 is a wasteful number, since it uses less digits than its factorization.

31304120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26266 (or 26257 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 31304120200 its reverse (202140313), we get a palindrome (31506260513).

The spelling of 31304120200 in words is "thirty-one billion, three hundred four million, one hundred twenty thousand, two hundred".