313230221312 has 56 divisors (see below), whose sum is σ = 663270866496. Its totient is φ = 147402391552.

The previous prime is 313230221303. The next prime is 313230221323. The reversal of 313230221312 is 213122032313.

It is a super-2 number, since 2×313230221312² (a number of 24 digits) contains 22 as substring.

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 3 ways as a sum of consecutive naturals, for example, 985328 + ... + 1263855.

It is an arithmetic number, because the mean of its divisors is an integer number (11844122616).

Almost surely, 2^313230221312 is an apocalyptic number.

313230221312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

313230221312 is an abundant number, since it is smaller than the sum of its proper divisors (350040645184).

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

313230221312 is an equidigital number, since it uses as much as digits as its factorization.

313230221312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2249226 (or 2249202 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 313230221312 its reverse (213122032313), we get a palindrome (526352253625).

The spelling of 313230221312 in words is "three hundred thirteen billion, two hundred thirty million, two hundred twenty-one thousand, three hundred twelve".