123417562503 has 4 divisors (see below), whose sum is σ = 164556750008. Its totient is φ = 82278375000.

The previous prime is 123417562481. The next prime is 123417562531. The reversal of 123417562503 is 305265714321.

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

It is not a de Polignac number, because 123417562503 - 2²⁵ = 123384008071 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123417562003) 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, 20569593748 + ... + 20569593753.

It is an arithmetic number, because the mean of its divisors is an integer number (41139187502).

Almost surely, 2^123417562503 is an apocalyptic number.

123417562503 is a deficient number, since it is larger than the sum of its proper divisors (41139187505).

123417562503 is an equidigital number, since it uses as much as digits as its factorization.

123417562503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41139187504.

The product of its (nonzero) digits is 151200, while the sum is 39.

The spelling of 123417562503 in words is "one hundred twenty-three billion, four hundred seventeen million, five hundred sixty-two thousand, five hundred three".