313122030312 has 128 divisors (see below), whose sum is σ = 989491910400. Its totient is φ = 80349677568.

The previous prime is 313122030301. The next prime is 313122030341. The reversal of 313122030312 is 213030221313.

It is a Harshad number since it is a multiple of its sum of digits (21).

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 31 ways as a sum of consecutive naturals, for example, 1856637 + ... + 2018252.

It is an arithmetic number, because the mean of its divisors is an integer number (7730405550).

Almost surely, 2^313122030312 is an apocalyptic number.

It is an amenable number.

313122030312 is an abundant number, since it is smaller than the sum of its proper divisors (676369880088).

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

313122030312 is a wasteful number, since it uses less digits than its factorization.

313122030312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3874955 (or 3874951 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 313122030312 its reverse (213030221313), we get a palindrome (526152251625).

The spelling of 313122030312 in words is "three hundred thirteen billion, one hundred twenty-two million, thirty thousand, three hundred twelve".