22123031191 has 2 divisors, whose sum is σ = 22123031192. Its totient is φ = 22123031190.

The previous prime is 22123031173. The next prime is 22123031221. The reversal of 22123031191 is 19113032122.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 22123031191 - 2¹⁵ = 22122998423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (22123031591) 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, 11061515595 + 11061515596.

It is an arithmetic number, because the mean of its divisors is an integer number (11061515596).

Almost surely, 2^22123031191 is an apocalyptic number.

22123031191 is a deficient number, since it is larger than the sum of its proper divisors (1).

22123031191 is an equidigital number, since it uses as much as digits as its factorization.

22123031191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 25.

The spelling of 22123031191 in words is "twenty-two billion, one hundred twenty-three million, thirty-one thousand, one hundred ninety-one".