312404241660521 has 8 divisors (see below), whose sum is σ = 312436293966720. Its totient is φ = 312372190075408.

The previous prime is 312404241660499. The next prime is 312404241660559. The reversal of 312404241660521 is 125066142404213.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-312404241660521 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (312404241665521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1399367135 + ... + 1399590363.

It is an arithmetic number, because the mean of its divisors is an integer number (39054536745840).

Almost surely, 2^{312404241660521} is an apocalyptic number.

It is an amenable number.

312404241660521 is a deficient number, since it is larger than the sum of its proper divisors (32052306199).

312404241660521 is a wasteful number, since it uses less digits than its factorization.

312404241660521 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 360543.

The product of its (nonzero) digits is 276480, while the sum is 41.

The spelling of 312404241660521 in words is "three hundred twelve trillion, four hundred four billion, two hundred forty-one million, six hundred sixty thousand, five hundred twenty-one".