315343131 has 8 divisors (see below), whose sum is σ = 420744000. Its totient is φ = 210085512.

The previous prime is 315343117. The next prime is 315343139. The reversal of 315343131 is 131343513.

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

It is not a de Polignac number, because 315343131 - 2⁷ = 315343003 is a prime.

It is a super-2 number, since 2×315343131² = 198882580537766322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (315343139) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30565 + ... + 39558.

It is an arithmetic number, because the mean of its divisors is an integer number (52593000).

Almost surely, 2^315343131 is an apocalyptic number.

315343131 is a deficient number, since it is larger than the sum of its proper divisors (105400869).

315343131 is a wasteful number, since it uses less digits than its factorization.

315343131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 71625.

The product of its digits is 1620, while the sum is 24.

The square root of 315343131 is about 17757.9033390769. The cubic root of 315343131 is about 680.6561796073.

Adding to 315343131 its reverse (131343513), we get a palindrome (446686644).

The spelling of 315343131 in words is "three hundred fifteen million, three hundred forty-three thousand, one hundred thirty-one".