31200230011200 has 168 divisors, whose sum is σ = 102367100714208. Its totient is φ = 8319708088320.

The previous prime is 31200230011193. The next prime is 31200230011213. The reversal of 31200230011200 is 211003200213.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 31200230011200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 124689414 + ... + 124939386.

Almost surely, 2^{31200230011200} is an apocalyptic number.

31200230011200 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31200230011200 is an abundant number, since it is smaller than the sum of its proper divisors (71166870703008).

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

31200230011200 is a wasteful number, since it uses less digits than its factorization.

31200230011200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 276001 (or 275986 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 31200230011200 its reverse (211003200213), we get a palindrome (31411233211413).

The spelling of 31200230011200 in words is "thirty-one trillion, two hundred billion, two hundred thirty million, eleven thousand, two hundred".