123903123 has 16 divisors (see below), whose sum is σ = 184129920. Its totient is φ = 73650816.

The previous prime is 123903079. The next prime is 123903133. The reversal of 123903123 is 321309321.

It is not a de Polignac number, because 123903123 - 2¹⁴ = 123886739 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 123903093 and 123903102.

It is not an unprimeable number, because it can be changed into a prime (123903133) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 62965 + ... + 64902.

It is an arithmetic number, because the mean of its divisors is an integer number (11508120).

Almost surely, 2^123903123 is an apocalyptic number.

123903123 is a deficient number, since it is larger than the sum of its proper divisors (60226797).

123903123 is a wasteful number, since it uses less digits than its factorization.

123903123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 127906.

The product of its (nonzero) digits is 972, while the sum is 24.

The square root of 123903123 is about 11131.1779700084. The cubic root of 123903123 is about 498.5331985280.

The spelling of 123903123 in words is "one hundred twenty-three million, nine hundred three thousand, one hundred twenty-three".