123903923 has 8 divisors (see below), whose sum is σ = 145565616. Its totient is φ = 103975200.

The previous prime is 123903919. The next prime is 123903937. The reversal of 123903923 is 329309321.

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

It is a cyclic number.

It is not a de Polignac number, because 123903923 - 2² = 123903919 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123903923.

It is not an unprimeable number, because it can be changed into a prime (123903943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 433088 + ... + 433373.

It is an arithmetic number, because the mean of its divisors is an integer number (18195702).

Almost surely, 2^123903923 is an apocalyptic number.

123903923 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123903923 is a deficient number, since it is larger than the sum of its proper divisors (21661693).

123903923 is a wasteful number, since it uses less digits than its factorization.

123903923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 866485.

The product of its (nonzero) digits is 8748, while the sum is 32.

The square root of 123903923 is about 11131.2139050510. The cubic root of 123903923 is about 498.5342714784.

The spelling of 123903923 in words is "one hundred twenty-three million, nine hundred three thousand, nine hundred twenty-three".