404320111999 has 2 divisors, whose sum is σ = 404320112000. Its totient is φ = 404320111998.

The previous prime is 404320111997. The next prime is 404320112093. The reversal of 404320111999 is 999111023404.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 404320111999 - 2¹ = 404320111997 is a prime.

Together with 404320111997, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (404320111991) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 202160055999 + 202160056000.

It is an arithmetic number, because the mean of its divisors is an integer number (202160056000).

Almost surely, 2^404320111999 is an apocalyptic number.

404320111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

404320111999 is an equidigital number, since it uses as much as digits as its factorization.

404320111999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 69984, while the sum is 43.

The spelling of 404320111999 in words is "four hundred four billion, three hundred twenty million, one hundred eleven thousand, nine hundred ninety-nine".