123266503 has 4 divisors (see below), whose sum is σ = 123389680. Its totient is φ = 123143328.

The previous prime is 123266489. The next prime is 123266527. The reversal of 123266503 is 305662321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 305662321 = 9587 ⋅31883.

It is a cyclic number.

It is not a de Polignac number, because 123266503 - 2¹⁷ = 123135431 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 (123266603) 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, 60075 + ... + 62092.

It is an arithmetic number, because the mean of its divisors is an integer number (30847420).

Almost surely, 2^123266503 is an apocalyptic number.

123266503 is a deficient number, since it is larger than the sum of its proper divisors (123177).

123266503 is a wasteful number, since it uses less digits than its factorization.

123266503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 123176.

The product of its (nonzero) digits is 6480, while the sum is 28.

The square root of 123266503 is about 11102.5448884479. The cubic root of 123266503 is about 497.6779030933.

The spelling of 123266503 in words is "one hundred twenty-three million, two hundred sixty-six thousand, five hundred three".