123417625503 has 4 divisors (see below), whose sum is σ = 164556834008. Its totient is φ = 82278417000.

The previous prime is 123417625451. The next prime is 123417625511. The reversal of 123417625503 is 305526714321.

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

It is a de Polignac number, because none of the positive numbers 2^k-123417625503 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 (123417625603) 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, 20569604248 + ... + 20569604253.

It is an arithmetic number, because the mean of its divisors is an integer number (41139208502).

Almost surely, 2^123417625503 is an apocalyptic number.

123417625503 is a deficient number, since it is larger than the sum of its proper divisors (41139208505).

123417625503 is an equidigital number, since it uses as much as digits as its factorization.

123417625503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41139208504.

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

The spelling of 123417625503 in words is "one hundred twenty-three billion, four hundred seventeen million, six hundred twenty-five thousand, five hundred three".