1311363705 has 32 divisors (see below), whose sum is σ = 2173897728. Its totient is φ = 674323200.

The previous prime is 1311363689. The next prime is 1311363707. The reversal of 1311363705 is 5073631131.

It is not a de Polignac number, because 1311363705 - 2⁴ = 1311363689 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311363707) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 123715 + ... + 133895.

It is an arithmetic number, because the mean of its divisors is an integer number (67934304).

Almost surely, 2^1311363705 is an apocalyptic number.

1311363705 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311363705 is a deficient number, since it is larger than the sum of its proper divisors (862534023).

1311363705 is a wasteful number, since it uses less digits than its factorization.

1311363705 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10497.

The product of its (nonzero) digits is 5670, while the sum is 30.

The square root of 1311363705 is about 36212.7561088631. The cubic root of 1311363705 is about 1094.5637302099.

Adding to 1311363705 its reverse (5073631131), we get a palindrome (6384994836).

The spelling of 1311363705 in words is "one billion, three hundred eleven million, three hundred sixty-three thousand, seven hundred five".