123522502489 has 2 divisors, whose sum is σ = 123522502490. Its totient is φ = 123522502488.

The previous prime is 123522502429. The next prime is 123522502513. The reversal of 123522502489 is 984205225321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 103526280025 + 19996222464 = 321755^2 + 141408^2 .

It is a cyclic number.

It is not a de Polignac number, because 123522502489 - 2⁷ = 123522502361 is a prime.

It is a super-2 number, since 2×123522502489² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (123522502429) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61761251244 + 61761251245.

It is an arithmetic number, because the mean of its divisors is an integer number (61761251245).

Almost surely, 2^123522502489 is an apocalyptic number.

It is an amenable number.

123522502489 is a deficient number, since it is larger than the sum of its proper divisors (1).

123522502489 is an equidigital number, since it uses as much as digits as its factorization.

123522502489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 345600, while the sum is 43.

The spelling of 123522502489 in words is "one hundred twenty-three billion, five hundred twenty-two million, five hundred two thousand, four hundred eighty-nine".