1313859231 has 24 divisors (see below), whose sum is σ = 1957516080. Its totient is φ = 870957360.

The previous prime is 1313859223. The next prime is 1313859311. The reversal of 1313859231 is 1329583131.

1313859231 is a `hidden beast` number, since 1 + 3 + 1 + 38 + 592 + 31 = 666.

It is not a de Polignac number, because 1313859231 - 2³ = 1313859223 is a prime.

It is a super-2 number, since 2×1313859231² = 3452452157767822722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313859221) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1201521 + ... + 1202613.

It is an arithmetic number, because the mean of its divisors is an integer number (81563170).

Almost surely, 2^1313859231 is an apocalyptic number.

1313859231 is a deficient number, since it is larger than the sum of its proper divisors (643656849).

1313859231 is an equidigital number, since it uses as much as digits as its factorization.

1313859231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1524 (or 1307 counting only the distinct ones).

The product of its digits is 19440, while the sum is 36.

The square root of 1313859231 is about 36247.1961812221. The cubic root of 1313859231 is about 1095.2576087468.

The spelling of 1313859231 in words is "one billion, three hundred thirteen million, eight hundred fifty-nine thousand, two hundred thirty-one".