315023540242 has 32 divisors (see below), whose sum is σ = 497723356800. Its totient is φ = 149319706368.

The previous prime is 315023540197. The next prime is 315023540263. The reversal of 315023540242 is 242045320513.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2760378 + ... + 2872234.

It is an arithmetic number, because the mean of its divisors is an integer number (15553854900).

Almost surely, 2^315023540242 is an apocalyptic number.

315023540242 is a deficient number, since it is larger than the sum of its proper divisors (182699816558).

315023540242 is a wasteful number, since it uses less digits than its factorization.

315023540242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 112770.

The product of its (nonzero) digits is 28800, while the sum is 31.

Adding to 315023540242 its reverse (242045320513), we get a palindrome (557068860755).

The spelling of 315023540242 in words is "three hundred fifteen billion, twenty-three million, five hundred forty thousand, two hundred forty-two".