31200112300 has 72 divisors (see below), whose sum is σ = 77408510816. Its totient is φ = 10692725760.

The previous prime is 31200112297. The next prime is 31200112381. The reversal of 31200112300 is 321100213.

It is a super-2 number, since 2×31200112300² (a number of 22 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1975234 + ... + 1990966.

Almost surely, 2^31200112300 is an apocalyptic number.

It is an amenable number.

31200112300 is an abundant number, since it is smaller than the sum of its proper divisors (46208398516).

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

31200112300 is a wasteful number, since it uses less digits than its factorization.

31200112300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18587 (or 18580 counting only the distinct ones).

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

Adding to 31200112300 its reverse (321100213), we get a palindrome (31521212513).

The spelling of 31200112300 in words is "thirty-one billion, two hundred million, one hundred twelve thousand, three hundred".