21144423122059 has 2 divisors, whose sum is σ = 21144423122060. Its totient is φ = 21144423122058.

The previous prime is 21144423122047. The next prime is 21144423122107. The reversal of 21144423122059 is 95022132444112.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21144423122059 - 2⁷ = 21144423121931 is a prime.

It is not a weakly prime, because it can be changed into another prime (21144423122759) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10572211561029 + 10572211561030.

It is an arithmetic number, because the mean of its divisors is an integer number (10572211561030).

Almost surely, 2^{21144423122059} is an apocalyptic number.

21144423122059 is a deficient number, since it is larger than the sum of its proper divisors (1).

21144423122059 is an equidigital number, since it uses as much as digits as its factorization.

21144423122059 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 40.

The spelling of 21144423122059 in words is "twenty-one trillion, one hundred forty-four billion, four hundred twenty-three million, one hundred twenty-two thousand, fifty-nine".