11412343991 has 2 divisors, whose sum is σ = 11412343992. Its totient is φ = 11412343990.

The previous prime is 11412343979. The next prime is 11412343993. The reversal of 11412343991 is 19934321411.

11412343991 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (19934321411) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11412343991 - 2¹⁰ = 11412342967 is a prime.

Together with 11412343993, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11412343993) 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 as a sum of consecutive naturals, namely, 5706171995 + 5706171996.

It is an arithmetic number, because the mean of its divisors is an integer number (5706171996).

Almost surely, 2^11412343991 is an apocalyptic number.

11412343991 is a deficient number, since it is larger than the sum of its proper divisors (1).

11412343991 is an equidigital number, since it uses as much as digits as its factorization.

11412343991 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23328, while the sum is 38.

The spelling of 11412343991 in words is "eleven billion, four hundred twelve million, three hundred forty-three thousand, nine hundred ninety-one".