313201991880 has 96 divisors (see below), whose sum is σ = 1019997201600. Its totient is φ = 83348984448.

The previous prime is 313201991717. The next prime is 313201991899. The reversal of 313201991880 is 88199102313.

It is a Harshad number since it is a multiple of its sum of digits (45).

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, 717910 + ... + 1068549.

It is an arithmetic number, because the mean of its divisors is an integer number (10624970850).

Almost surely, 2^313201991880 is an apocalyptic number.

313201991880 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313201991880 is an abundant number, since it is smaller than the sum of its proper divisors (706795209720).

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

313201991880 is a wasteful number, since it uses less digits than its factorization.

313201991880 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1786963 (or 1786956 counting only the distinct ones).

The product of its (nonzero) digits is 93312, while the sum is 45.

The spelling of 313201991880 in words is "three hundred thirteen billion, two hundred one million, nine hundred ninety-one thousand, eight hundred eighty".