315321541531 has 8 divisors (see below), whose sum is σ = 316275134000. Its totient is φ = 314368236000.

The previous prime is 315321541523. The next prime is 315321541553. The reversal of 315321541531 is 135145123513.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 315321541531 - 2³ = 315321541523 is a prime.

It is a super-2 number, since 2×315321541531² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (315321541831) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2241781 + ... + 2378281.

It is an arithmetic number, because the mean of its divisors is an integer number (39534391750).

Almost surely, 2^315321541531 is an apocalyptic number.

315321541531 is a deficient number, since it is larger than the sum of its proper divisors (953592469).

315321541531 is a wasteful number, since it uses less digits than its factorization.

315321541531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143469.

The product of its digits is 27000, while the sum is 34.

The spelling of 315321541531 in words is "three hundred fifteen billion, three hundred twenty-one million, five hundred forty-one thousand, five hundred thirty-one".