315440320201 has 4 divisors (see below), whose sum is σ = 333995633172. Its totient is φ = 296885007232.

The previous prime is 315440320199. The next prime is 315440320249. The reversal of 315440320201 is 102023044513.

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 131262014601 + 184178305600 = 362301^2 + 429160^2 .

It is a cyclic number.

It is not a de Polignac number, because 315440320201 - 2¹ = 315440320199 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315440320301) 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, 9277656460 + ... + 9277656493.

It is an arithmetic number, because the mean of its divisors is an integer number (83498908293).

Almost surely, 2^315440320201 is an apocalyptic number.

It is an amenable number.

315440320201 is a deficient number, since it is larger than the sum of its proper divisors (18555312971).

315440320201 is a wasteful number, since it uses less digits than its factorization.

315440320201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18555312970.

The product of its (nonzero) digits is 2880, while the sum is 25.

Adding to 315440320201 its reverse (102023044513), we get a palindrome (417463364714).

The spelling of 315440320201 in words is "three hundred fifteen billion, four hundred forty million, three hundred twenty thousand, two hundred one".