11344404391 has 2 divisors, whose sum is σ = 11344404392. Its totient is φ = 11344404390.

The previous prime is 11344404361. The next prime is 11344404439. The reversal of 11344404391 is 19340444311.

It is a weak prime.

It is an emirp because it is prime and its reverse (19340444311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11344404391 - 2⁵ = 11344404359 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11344404341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5672202195 + 5672202196.

It is an arithmetic number, because the mean of its divisors is an integer number (5672202196).

Almost surely, 2^11344404391 is an apocalyptic number.

11344404391 is a deficient number, since it is larger than the sum of its proper divisors (1).

11344404391 is an equidigital number, since it uses as much as digits as its factorization.

11344404391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 20736, while the sum is 34.

The spelling of 11344404391 in words is "eleven billion, three hundred forty-four million, four hundred four thousand, three hundred ninety-one".