313321002000 has 80 divisors (see below), whose sum is σ = 1010146929792. Its totient is φ = 83552265600.

The previous prime is 313321001927. The next prime is 313321002023. The reversal of 313321002000 is 200123313.

It is a tau number, because it is divible by the number of its divisors (80).

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

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26104084 + ... + 26116083.

Almost surely, 2^313321002000 is an apocalyptic number.

313321002000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313321002000 is an abundant number, since it is smaller than the sum of its proper divisors (696825927792).

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

313321002000 is a wasteful number, since it uses less digits than its factorization.

313321002000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52220193 (or 52220177 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 313321002000 its reverse (200123313), we get a palindrome (313521125313).

The spelling of 313321002000 in words is "three hundred thirteen billion, three hundred twenty-one million, two thousand".