315143320404 has 96 divisors (see below), whose sum is σ = 821138605056. Its totient is φ = 93242983680.

The previous prime is 315143320399. The next prime is 315143320441. The reversal of 315143320404 is 404023341513.

It is a super-3 number, since 3×315143320404³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 18478209 + ... + 18495255.

It is an arithmetic number, because the mean of its divisors is an integer number (8553527136).

Almost surely, 2^315143320404 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 315143320404, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (410569302528).

315143320404 is an abundant number, since it is smaller than the sum of its proper divisors (505995284652).

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

315143320404 is a wasteful number, since it uses less digits than its factorization.

315143320404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20365 (or 20363 counting only the distinct ones).

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 315143320404 its reverse (404023341513), we get a palindrome (719166661917).

The spelling of 315143320404 in words is "three hundred fifteen billion, one hundred forty-three million, three hundred twenty thousand, four hundred four".