315243055501523 has 4 divisors (see below), whose sum is σ = 316596029988888. Its totient is φ = 313890081014160.

The previous prime is 315243055501519. The next prime is 315243055501573. The reversal of 315243055501523 is 325105550342513.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 315243055501523 - 2² = 315243055501519 is a prime.

It is a super-3 number, since 3×315243055501523³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315243055501573) 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, 676487243333 + ... + 676487243798.

It is an arithmetic number, because the mean of its divisors is an integer number (79149007497222).

Almost surely, 2^{315243055501523} is an apocalyptic number.

315243055501523 is a deficient number, since it is larger than the sum of its proper divisors (1352974487365).

315243055501523 is a wasteful number, since it uses less digits than its factorization.

315243055501523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1352974487364.

The product of its (nonzero) digits is 1350000, while the sum is 44.

The spelling of 315243055501523 in words is "three hundred fifteen trillion, two hundred forty-three billion, fifty-five million, five hundred one thousand, five hundred twenty-three".