315212320124 has 48 divisors (see below), whose sum is σ = 612064158720. Its totient is φ = 141137303040.

The previous prime is 315212320103. The next prime is 315212320169. The reversal of 315212320124 is 421023212513.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 315212320093 and 315212320102.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 449084 + ... + 912195.

It is an arithmetic number, because the mean of its divisors is an integer number (12751336640).

Almost surely, 2^315212320124 is an apocalyptic number.

It is an amenable number.

315212320124 is a deficient number, since it is larger than the sum of its proper divisors (296851838596).

315212320124 is a wasteful number, since it uses less digits than its factorization.

315212320124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1361430 (or 1361428 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

Adding to 315212320124 its reverse (421023212513), we get a palindrome (736235532637).

The spelling of 315212320124 in words is "three hundred fifteen billion, two hundred twelve million, three hundred twenty thousand, one hundred twenty-four".