313503404305312 has 48 divisors (see below), whose sum is σ = 665296753316832. Its totient is φ = 144561253697280.

The previous prime is 313503404305307. The next prime is 313503404305327. The reversal of 313503404305312 is 213503404305313.

It is a happy number.

It is a super-2 number, since 2×313503404305312² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344923758 + ... + 345831469.

It is an arithmetic number, because the mean of its divisors is an integer number (13860349027434).

Almost surely, 2^{313503404305312} is an apocalyptic number.

313503404305312 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

313503404305312 is an abundant number, since it is smaller than the sum of its proper divisors (351793349011520).

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

313503404305312 is a wasteful number, since it uses less digits than its factorization.

313503404305312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 690756341 (or 690756333 counting only the distinct ones).

The product of its (nonzero) digits is 194400, while the sum is 37.

Subtracting from 313503404305312 its reverse (213503404305313), we obtain a palindrome (99999999999999).

The spelling of 313503404305312 in words is "three hundred thirteen trillion, five hundred three billion, four hundred four million, three hundred five thousand, three hundred twelve".