31030110020200 has 96 divisors (see below), whose sum is σ = 75856253427000. Its totient is φ = 11787582643200.

The previous prime is 31030110020177. The next prime is 31030110020207. The reversal of 31030110020200 is 202001103013.

It can be written as a sum of positive squares in 12 ways, for example, as 2219688779044 + 28810421241156 = 1489862^2 + 5367534^2 .

It is not an unprimeable number, because it can be changed into a prime (31030110020207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 43498815 + ... + 44206414.

Almost surely, 2^{31030110020200} is an apocalyptic number.

It is an amenable number.

31030110020200 is an abundant number, since it is smaller than the sum of its proper divisors (44826143406800).

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

31030110020200 is a wasteful number, since it uses less digits than its factorization.

31030110020200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87705335 (or 87705326 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 31030110020200 its reverse (202001103013), we get a palindrome (31232111123213).

The spelling of 31030110020200 in words is "thirty-one trillion, thirty billion, one hundred ten million, twenty thousand, two hundred".