2311022111999 has 2 divisors, whose sum is σ = 2311022112000. Its totient is φ = 2311022111998.

The previous prime is 2311022111947. The next prime is 2311022112001. The reversal of 2311022111999 is 9991112201132.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2311022111999 - 2¹² = 2311022107903 is a prime.

Together with 2311022112001, 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 (2311022111399) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155511055999 + 1155511056000.

It is an arithmetic number, because the mean of its divisors is an integer number (1155511056000).

Almost surely, 2^{2311022111999} is an apocalyptic number.

2311022111999 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311022111999 is an equidigital number, since it uses as much as digits as its factorization.

2311022111999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 41.

The spelling of 2311022111999 in words is "two trillion, three hundred eleven billion, twenty-two million, one hundred eleven thousand, nine hundred ninety-nine".