123558003 has 12 divisors (see below), whose sum is σ = 178763728. Its totient is φ = 82237680.

The previous prime is 123557957. The next prime is 123558011. The reversal of 123558003 is 300855321.

It is not a de Polignac number, because 123558003 - 2⁶ = 123557939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123558103) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5200 + ... + 16557.

Almost surely, 2^123558003 is an apocalyptic number.

123558003 is a deficient number, since it is larger than the sum of its proper divisors (55205725).

123558003 is a wasteful number, since it uses less digits than its factorization.

123558003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22394 (or 22391 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

The square root of 123558003 is about 11115.6647574493. The cubic root of 123558003 is about 498.0698963199.

The spelling of 123558003 in words is "one hundred twenty-three million, five hundred fifty-eight thousand, three".