123243502221559 has 2 divisors, whose sum is σ = 123243502221560. Its totient is φ = 123243502221558.

The previous prime is 123243502221523. The next prime is 123243502221577. The reversal of 123243502221559 is 955122205342321.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 123243502221559 - 2⁷ = 123243502221431 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123243502228559) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61621751110779 + 61621751110780.

It is an arithmetic number, because the mean of its divisors is an integer number (61621751110780).

Almost surely, 2^{123243502221559} is an apocalyptic number.

123243502221559 is a deficient number, since it is larger than the sum of its proper divisors (1).

123243502221559 is an equidigital number, since it uses as much as digits as its factorization.

123243502221559 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296000, while the sum is 46.

The spelling of 123243502221559 in words is "one hundred twenty-three trillion, two hundred forty-three billion, five hundred two million, two hundred twenty-one thousand, five hundred fifty-nine".