1311576379 has 2 divisors, whose sum is σ = 1311576380. Its totient is φ = 1311576378.

The previous prime is 1311576337. The next prime is 1311576421. The reversal of 1311576379 is 9736751131.

It is a balanced prime because it is at equal distance from previous prime (1311576337) and next prime (1311576421).

It is a cyclic number.

It is not a de Polignac number, because 1311576379 - 2¹⁹ = 1311052091 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311576779) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655788189 + 655788190.

It is an arithmetic number, because the mean of its divisors is an integer number (655788190).

Almost surely, 2^1311576379 is an apocalyptic number.

1311576379 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311576379 is an equidigital number, since it uses as much as digits as its factorization.

1311576379 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 119070, while the sum is 43.

The square root of 1311576379 is about 36215.6924412609. The cubic root of 1311576379 is about 1094.6228983015.

The spelling of 1311576379 in words is "one billion, three hundred eleven million, five hundred seventy-six thousand, three hundred seventy-nine".