1317260868 has 48 divisors (see below), whose sum is σ = 3832034304. Its totient is φ = 342145440.

The previous prime is 1317260851. The next prime is 1317260921. The reversal of 1317260868 is 8680627131.

It is a super-2 number, since 2×1317260868² = 3470352388728226848, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 711880 + ... + 713727.

It is an arithmetic number, because the mean of its divisors is an integer number (79834048).

Almost surely, 2^1317260868 is an apocalyptic number.

It is an amenable number.

1317260868 is an abundant number, since it is smaller than the sum of its proper divisors (2514773436).

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

1317260868 is a wasteful number, since it uses less digits than its factorization.

1317260868 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425632 (or 1425630 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 42.

The square root of 1317260868 is about 36294.0886095794. The cubic root of 1317260868 is about 1096.2020169022.

Adding to 1317260868 its reverse (8680627131), we get a palindrome (9997887999).

The spelling of 1317260868 in words is "one billion, three hundred seventeen million, two hundred sixty thousand, eight hundred sixty-eight".