123424723 has 4 divisors (see below), whose sum is σ = 123447960. Its totient is φ = 123401488.

The previous prime is 123424681. The next prime is 123424729. The reversal of 123424723 is 327424321.

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 123424723 - 2⁹ = 123424211 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123424691 and 123424700.

It is not an unprimeable number, because it can be changed into a prime (123424729) 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, 711 + ... + 15727.

It is an arithmetic number, because the mean of its divisors is an integer number (30861990).

Almost surely, 2^123424723 is an apocalyptic number.

123424723 is a deficient number, since it is larger than the sum of its proper divisors (23237).

123424723 is an equidigital number, since it uses as much as digits as its factorization.

123424723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23236.

The product of its digits is 8064, while the sum is 28.

The square root of 123424723 is about 11109.6679968395. The cubic root of 123424723 is about 497.8907452676.

The spelling of 123424723 in words is "one hundred twenty-three million, four hundred twenty-four thousand, seven hundred twenty-three".