313212451551540 has 48 divisors (see below), whose sum is σ = 876995745763200. Its totient is φ = 83523236469120.

The previous prime is 313212451551521. The next prime is 313212451551581. The reversal of 313212451551540 is 45155154212313.

It is a junction number, because it is equal to n+sod(n) for n = 313212451551492 and 313212451551501.

It is a congruent number.

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, 78104361 + ... + 82016559.

It is an arithmetic number, because the mean of its divisors is an integer number (18270744703400).

Almost surely, 2^{313212451551540} is an apocalyptic number.

313212451551540 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

313212451551540 is an abundant number, since it is smaller than the sum of its proper divisors (563783294211660).

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

313212451551540 is a wasteful number, since it uses less digits than its factorization.

313212451551540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5246552 (or 5246550 counting only the distinct ones).

The product of its (nonzero) digits is 360000, while the sum is 42.

The spelling of 313212451551540 in words is "three hundred thirteen trillion, two hundred twelve billion, four hundred fifty-one million, five hundred fifty-one thousand, five hundred forty".