1311456377 has 16 divisors (see below), whose sum is σ = 1635904512. Its totient is φ = 1021387920.

The previous prime is 1311456371. The next prime is 1311456397. The reversal of 1311456377 is 7736541131.

It is not a de Polignac number, because 1311456377 - 2¹⁸ = 1311194233 is a prime.

It is a super-2 number, since 2×1311456377² = 3439835657547932258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1311456377.

It is not an unprimeable number, because it can be changed into a prime (1311456371) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 220598 + ... + 226464.

It is an arithmetic number, because the mean of its divisors is an integer number (102244032).

Almost surely, 2^1311456377 is an apocalyptic number.

It is an amenable number.

1311456377 is a deficient number, since it is larger than the sum of its proper divisors (324448135).

1311456377 is a wasteful number, since it uses less digits than its factorization.

1311456377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8788.

The product of its digits is 52920, while the sum is 38.

The square root of 1311456377 is about 36214.0356353721. The cubic root of 1311456377 is about 1094.5895132987.

The spelling of 1311456377 in words is "one billion, three hundred eleven million, four hundred fifty-six thousand, three hundred seventy-seven".