123912903 has 8 divisors (see below), whose sum is σ = 165814768. Its totient is φ = 82309824.

The previous prime is 123912871. The next prime is 123912907. The reversal of 123912903 is 309219321.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123912903 - 2⁵ = 123912871 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 (123912907) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 73726 + ... + 75387.

It is an arithmetic number, because the mean of its divisors is an integer number (20726846).

Almost surely, 2^123912903 is an apocalyptic number.

123912903 is a deficient number, since it is larger than the sum of its proper divisors (41901865).

123912903 is a wasteful number, since it uses less digits than its factorization.

123912903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 149393.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 123912903 is about 11131.6172679445. The cubic root of 123912903 is about 498.5463150292.

The spelling of 123912903 in words is "one hundred twenty-three million, nine hundred twelve thousand, nine hundred three".