1313560231 has 8 divisors (see below), whose sum is σ = 1386532400. Its totient is φ = 1244418984.

The previous prime is 1313560223. The next prime is 1313560253. The reversal of 1313560231 is 1320653131.

It is not a de Polignac number, because 1313560231 - 2³ = 1313560223 is a prime.

It is a super-2 number, since 2×1313560231² = 3450880960929546722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1313560196 and 1313560205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313560331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88896 + ... + 102613.

It is an arithmetic number, because the mean of its divisors is an integer number (173316550).

Almost surely, 2^1313560231 is an apocalyptic number.

1313560231 is a deficient number, since it is larger than the sum of its proper divisors (72972169).

1313560231 is an frugal number, since it uses more digits than its factorization.

1313560231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 191566 (or 191528 counting only the distinct ones).

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 1313560231 is about 36243.0714895965. The cubic root of 1313560231 is about 1095.1745184475.

The spelling of 1313560231 in words is "one billion, three hundred thirteen million, five hundred sixty thousand, two hundred thirty-one".