312309341720 has 16 divisors (see below), whose sum is σ = 702696018960. Its totient is φ = 124923736672.

The previous prime is 312309341711. The next prime is 312309341731. The reversal of 312309341720 is 27143903213.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3903866732 + ... + 3903866811.

It is an arithmetic number, because the mean of its divisors is an integer number (43918501185).

Almost surely, 2^312309341720 is an apocalyptic number.

It is an amenable number.

312309341720 is an abundant number, since it is smaller than the sum of its proper divisors (390386677240).

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

312309341720 is a wasteful number, since it uses less digits than its factorization.

312309341720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7807733554 (or 7807733550 counting only the distinct ones).

The product of its (nonzero) digits is 27216, while the sum is 35.

The spelling of 312309341720 in words is "three hundred twelve billion, three hundred nine million, three hundred forty-one thousand, seven hundred twenty".