315231322160 has 40 divisors (see below), whose sum is σ = 734567337360. Its totient is φ = 125807881472.

The previous prime is 315231322121. The next prime is 315231322177. The reversal of 315231322160 is 61223132513.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4411955 + ... + 4482834.

It is an arithmetic number, because the mean of its divisors is an integer number (18364183434).

Almost surely, 2^315231322160 is an apocalyptic number.

It is an amenable number.

315231322160 is an abundant number, since it is smaller than the sum of its proper divisors (419336015200).

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

315231322160 is a wasteful number, since it uses less digits than its factorization.

315231322160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8895245 (or 8895239 counting only the distinct ones).

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

Adding to 315231322160 its reverse (61223132513), we get a palindrome (376454454673).

The spelling of 315231322160 in words is "three hundred fifteen billion, two hundred thirty-one million, three hundred twenty-two thousand, one hundred sixty".