123695122459 has 2 divisors, whose sum is σ = 123695122460. Its totient is φ = 123695122458.

The previous prime is 123695122451. The next prime is 123695122477. The reversal of 123695122459 is 954221596321.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 123695122459 - 2³ = 123695122451 is a prime.

It is not a weakly prime, because it can be changed into another prime (123695122451) 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, 61847561229 + 61847561230.

It is an arithmetic number, because the mean of its divisors is an integer number (61847561230).

Almost surely, 2^123695122459 is an apocalyptic number.

123695122459 is a deficient number, since it is larger than the sum of its proper divisors (1).

123695122459 is an equidigital number, since it uses as much as digits as its factorization.

123695122459 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1166400, while the sum is 49.

The spelling of 123695122459 in words is "one hundred twenty-three billion, six hundred ninety-five million, one hundred twenty-two thousand, four hundred fifty-nine".