11311212379 has 2 divisors, whose sum is σ = 11311212380. Its totient is φ = 11311212378.

The previous prime is 11311212347. The next prime is 11311212433. The reversal of 11311212379 is 97321211311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11311212379 - 2⁵ = 11311212347 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11311212379.

It is not a weakly prime, because it can be changed into another prime (11311212329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655606189 + 5655606190.

It is an arithmetic number, because the mean of its divisors is an integer number (5655606190).

Almost surely, 2^11311212379 is an apocalyptic number.

11311212379 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311212379 is an equidigital number, since it uses as much as digits as its factorization.

11311212379 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 31.

The spelling of 11311212379 in words is "eleven billion, three hundred eleven million, two hundred twelve thousand, three hundred seventy-nine".