1311585107 has 24 divisors (see below), whose sum is σ = 1579197312. Its totient is φ = 1085011200.

The previous prime is 1311585103. The next prime is 1311585131. The reversal of 1311585107 is 7015851131.

It is a happy number.

It is not a de Polignac number, because 1311585107 - 2² = 1311585103 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311585103) 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, 699323 + ... + 701195.

It is an arithmetic number, because the mean of its divisors is an integer number (65799888).

Almost surely, 2^1311585107 is an apocalyptic number.

1311585107 is a deficient number, since it is larger than the sum of its proper divisors (267612205).

1311585107 is a wasteful number, since it uses less digits than its factorization.

1311585107 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2379 (or 2372 counting only the distinct ones).

The product of its (nonzero) digits is 4200, while the sum is 32.

The square root of 1311585107 is about 36215.8129413106. The cubic root of 1311585107 is about 1094.6253263841.

The spelling of 1311585107 in words is "one billion, three hundred eleven million, five hundred eighty-five thousand, one hundred seven".