123189703 has 8 divisors (see below), whose sum is σ = 151618208. Its totient is φ = 97468704.

The previous prime is 123189697. The next prime is 123189719. The reversal of 123189703 is 307981321.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123189703 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123189743) 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, 676776 + ... + 676957.

It is an arithmetic number, because the mean of its divisors is an integer number (18952276).

Almost surely, 2^123189703 is an apocalyptic number.

123189703 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

123189703 is a deficient number, since it is larger than the sum of its proper divisors (28428505).

123189703 is a wasteful number, since it uses less digits than its factorization.

123189703 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1353753.

The product of its (nonzero) digits is 9072, while the sum is 34.

The square root of 123189703 is about 11099.0856830642. The cubic root of 123189703 is about 497.5745238225.

The spelling of 123189703 in words is "one hundred twenty-three million, one hundred eighty-nine thousand, seven hundred three".