123050503 has 4 divisors (see below), whose sum is σ = 123561328. Its totient is φ = 122539680.

The previous prime is 123050467. The next prime is 123050519. The reversal of 123050503 is 305050321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123050503 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123050533) 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, 255051 + ... + 255532.

It is an arithmetic number, because the mean of its divisors is an integer number (30890332).

Almost surely, 2^123050503 is an apocalyptic number.

123050503 is a deficient number, since it is larger than the sum of its proper divisors (510825).

123050503 is an equidigital number, since it uses as much as digits as its factorization.

123050503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 510824.

The product of its (nonzero) digits is 450, while the sum is 19.

The square root of 123050503 is about 11092.8131238203. The cubic root of 123050503 is about 497.3870393266.

The spelling of 123050503 in words is "one hundred twenty-three million, fifty thousand, five hundred three".