123903207 has 12 divisors (see below), whose sum is σ = 179068344. Its totient is φ = 82557360.

The previous prime is 123903193. The next prime is 123903229. The reversal of 123903207 is 702309321.

It is not a de Polignac number, because 123903207 - 2⁷ = 123903079 is a prime.

It is a Smith number, since the sum of its digits (27) coincides with the sum of the digits of its prime factors.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123903287) 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, 27913 + ... + 32045.

It is an arithmetic number, because the mean of its divisors is an integer number (14922362).

Almost surely, 2^123903207 is an apocalyptic number.

123903207 is a deficient number, since it is larger than the sum of its proper divisors (55165137).

123903207 is a wasteful number, since it uses less digits than its factorization.

123903207 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7470 (or 7467 counting only the distinct ones).

The product of its (nonzero) digits is 2268, while the sum is 27.

The square root of 123903207 is about 11131.1817431933. The cubic root of 123903207 is about 498.5333111880.

The spelling of 123903207 in words is "one hundred twenty-three million, nine hundred three thousand, two hundred seven".