315221231344 has 40 divisors (see below), whose sum is σ = 637494867360. Its totient is φ = 150710723328.

The previous prime is 315221231329. The next prime is 315221231383. The reversal of 315221231344 is 443132122513.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1055634 + ... + 1320910.

It is an arithmetic number, because the mean of its divisors is an integer number (15937371684).

Almost surely, 2^315221231344 is an apocalyptic number.

It is an amenable number.

315221231344 is an abundant number, since it is smaller than the sum of its proper divisors (322273636016).

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

315221231344 is a wasteful number, since it uses less digits than its factorization.

315221231344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 268537 (or 268531 counting only the distinct ones).

The product of its digits is 17280, while the sum is 31.

Adding to 315221231344 its reverse (443132122513), we get a palindrome (758353353857).

The spelling of 315221231344 in words is "three hundred fifteen billion, two hundred twenty-one million, two hundred thirty-one thousand, three hundred forty-four".