123894023 has 4 divisors (see below), whose sum is σ = 135157128. Its totient is φ = 112630920.

The previous prime is 123894007. The next prime is 123894047. The reversal of 123894023 is 320498321.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 123894023 - 2⁴ = 123894007 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 (123894053) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5631536 + ... + 5631557.

It is an arithmetic number, because the mean of its divisors is an integer number (33789282).

Almost surely, 2^123894023 is an apocalyptic number.

123894023 is a deficient number, since it is larger than the sum of its proper divisors (11263105).

123894023 is a wasteful number, since it uses less digits than its factorization.

123894023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11263104.

The product of its (nonzero) digits is 10368, while the sum is 32.

The square root of 123894023 is about 11130.7692007336. The cubic root of 123894023 is about 498.5209933926.

The spelling of 123894023 in words is "one hundred twenty-three million, eight hundred ninety-four thousand, twenty-three".