2311220444189 has 2 divisors, whose sum is σ = 2311220444190. Its totient is φ = 2311220444188.

The previous prime is 2311220444089. The next prime is 2311220444191. The reversal of 2311220444189 is 9814440221132.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2173731512164 + 137488932025 = 1474358^2 + 370795^2 .

It is a cyclic number.

It is not a de Polignac number, because 2311220444189 - 2²⁸ = 2310952008733 is a prime.

Together with 2311220444191, 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 (2311220444089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1155610222094 + 1155610222095.

It is an arithmetic number, because the mean of its divisors is an integer number (1155610222095).

Almost surely, 2^{2311220444189} is an apocalyptic number.

It is an amenable number.

2311220444189 is a deficient number, since it is larger than the sum of its proper divisors (1).

2311220444189 is an equidigital number, since it uses as much as digits as its factorization.

2311220444189 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 110592, while the sum is 41.

The spelling of 2311220444189 in words is "two trillion, three hundred eleven billion, two hundred twenty million, four hundred forty-four thousand, one hundred eighty-nine".