312131203000 has 64 divisors (see below), whose sum is σ = 773350999200. Its totient is φ = 117508211200.

The previous prime is 312131202961. The next prime is 312131203031. The reversal of 312131203000 is 302131213.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 9163330 + ... + 9197329.

Almost surely, 2^312131203000 is an apocalyptic number.

It is an amenable number.

312131203000 is an abundant number, since it is smaller than the sum of its proper divisors (461219796200).

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

312131203000 is a wasteful number, since it uses less digits than its factorization.

312131203000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18360697 (or 18360683 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 312131203000 its reverse (302131213), we get a palindrome (312433334213).

The spelling of 312131203000 in words is "three hundred twelve billion, one hundred thirty-one million, two hundred three thousand".