123534226229191 has 2 divisors, whose sum is σ = 123534226229192. Its totient is φ = 123534226229190.

The previous prime is 123534226229171. The next prime is 123534226229209. The reversal of 123534226229191 is 191922622435321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123534226229191 - 2⁵ = 123534226229159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123534226229171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61767113114595 + 61767113114596.

It is an arithmetic number, because the mean of its divisors is an integer number (61767113114596).

Almost surely, 2^{123534226229191} is an apocalyptic number.

123534226229191 is a deficient number, since it is larger than the sum of its proper divisors (1).

123534226229191 is an equidigital number, since it uses as much as digits as its factorization.

123534226229191 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2799360, while the sum is 52.

The spelling of 123534226229191 in words is "one hundred twenty-three trillion, five hundred thirty-four billion, two hundred twenty-six million, two hundred twenty-nine thousand, one hundred ninety-one".