123923613 has 32 divisors (see below), whose sum is σ = 184384512. Its totient is φ = 73404800.

The previous prime is 123923603. The next prime is 123923617. The reversal of 123923613 is 316329321.

It is a cyclic number.

It is not a de Polignac number, because 123923613 - 2⁸ = 123923357 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123923617) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 531745 + ... + 531977.

It is an arithmetic number, because the mean of its divisors is an integer number (5762016).

Almost surely, 2^123923613 is an apocalyptic number.

It is an amenable number.

123923613 is a deficient number, since it is larger than the sum of its proper divisors (60460899).

123923613 is a wasteful number, since it uses less digits than its factorization.

123923613 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 545.

The product of its digits is 5832, while the sum is 30.

The square root of 123923613 is about 11132.0983197239. The cubic root of 123923613 is about 498.5606780135.

The spelling of 123923613 in words is "one hundred twenty-three million, nine hundred twenty-three thousand, six hundred thirteen".