2315066321 has 4 divisors (see below), whose sum is σ = 2321936292. Its totient is φ = 2308196352.

The previous prime is 2315066291. The next prime is 2315066339. The reversal of 2315066321 is 1236605132.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 1587145921 + 727920400 = 39839^2 + 26980^2 .

It is a cyclic number.

It is not a de Polignac number, because 2315066321 - 2¹⁰ = 2315065297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (2315066371) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3434480 + ... + 3435153.

It is an arithmetic number, because the mean of its divisors is an integer number (580484073).

Almost surely, 2^2315066321 is an apocalyptic number.

It is an amenable number.

2315066321 is a deficient number, since it is larger than the sum of its proper divisors (6869971).

2315066321 is an equidigital number, since it uses as much as digits as its factorization.

2315066321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6869970.

The product of its (nonzero) digits is 6480, while the sum is 29.

The square root of 2315066321 is about 48115.1360904238. The cubic root of 2315066321 is about 1322.8821171804.

The spelling of 2315066321 in words is "two billion, three hundred fifteen million, sixty-six thousand, three hundred twenty-one".