31013230200200 has 24 divisors (see below), whose sum is σ = 72105760215930. Its totient is φ = 12405292080000.

The previous prime is 31013230200191. The next prime is 31013230200203. The reversal of 31013230200200 is 200203231013.

It can be written as a sum of positive squares in 3 ways, for example, as 29449224837796 + 1564005362404 = 5426714^2 + 1250602^2 .

It is not an unprimeable number, because it can be changed into a prime (31013230200203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 77533075301 + ... + 77533075700.

Almost surely, 2^{31013230200200} is an apocalyptic number.

It is an amenable number.

31013230200200 is an abundant number, since it is smaller than the sum of its proper divisors (41092530015730).

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

31013230200200 is a wasteful number, since it uses less digits than its factorization.

31013230200200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155066151017 (or 155066151008 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 31013230200200 its reverse (200203231013), we get a palindrome (31213433431213).

The spelling of 31013230200200 in words is "thirty-one trillion, thirteen billion, two hundred thirty million, two hundred thousand, two hundred".