1311431301 has 12 divisors (see below), whose sum is σ = 1959610380. Its totient is φ = 844139520.

The previous prime is 1311431263. The next prime is 1311431321. The reversal of 1311431301 is 1031341131.

It can be written as a sum of positive squares in 2 ways, for example, as 626300676 + 685130625 = 25026^2 + 26175^2 .

It is not a de Polignac number, because 1311431301 - 2¹¹ = 1311429253 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311431321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2512060 + ... + 2512581.

It is an arithmetic number, because the mean of its divisors is an integer number (163300865).

Almost surely, 2^1311431301 is an apocalyptic number.

It is an amenable number.

1311431301 is a deficient number, since it is larger than the sum of its proper divisors (648179079).

1311431301 is a wasteful number, since it uses less digits than its factorization.

1311431301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5024676 (or 5024673 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

The square root of 1311431301 is about 36213.6894143637. The cubic root of 1311431301 is about 1094.5825368050.

Adding to 1311431301 its reverse (1031341131), we get a palindrome (2342772432).

The spelling of 1311431301 in words is "one billion, three hundred eleven million, four hundred thirty-one thousand, three hundred one".