123500240459 has 4 divisors (see below), whose sum is σ = 130764960504. Its totient is φ = 116235520416.

The previous prime is 123500240447. The next prime is 123500240503. The reversal of 123500240459 is 954042005321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123500240459 - 2⁴ = 123500240443 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123500240419) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3632359997 + ... + 3632360030.

It is an arithmetic number, because the mean of its divisors is an integer number (32691240126).

Almost surely, 2^123500240459 is an apocalyptic number.

123500240459 is a deficient number, since it is larger than the sum of its proper divisors (7264720045).

123500240459 is an equidigital number, since it uses as much as digits as its factorization.

123500240459 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7264720044.

The product of its (nonzero) digits is 43200, while the sum is 35.

The spelling of 123500240459 in words is "one hundred twenty-three billion, five hundred million, two hundred forty thousand, four hundred fifty-nine".