315261065321 has 8 divisors (see below), whose sum is σ = 323794345920. Its totient is φ = 306728453808.

The previous prime is 315261065309. The next prime is 315261065347. The reversal of 315261065321 is 123560162513.

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

It is a cyclic number.

It is not a de Polignac number, because 315261065321 - 2⁶ = 315261065257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315261065921) 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, 874460 + ... + 1181186.

It is an arithmetic number, because the mean of its divisors is an integer number (40474293240).

Almost surely, 2^315261065321 is an apocalyptic number.

It is an amenable number.

315261065321 is a deficient number, since it is larger than the sum of its proper divisors (8533280599).

315261065321 is a wasteful number, since it uses less digits than its factorization.

315261065321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 334543.

The product of its (nonzero) digits is 32400, while the sum is 35.

The spelling of 315261065321 in words is "three hundred fifteen billion, two hundred sixty-one million, sixty-five thousand, three hundred twenty-one".