123245423 has 4 divisors (see below), whose sum is σ = 140851920. Its totient is φ = 105638928.

The previous prime is 123245417. The next prime is 123245443. The reversal of 123245423 is 324542321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324542321 = 587 ⋅552883.

It is a cyclic number.

It is not a de Polignac number, because 123245423 - 2⁴ = 123245407 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123245392 and 123245401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123245413) 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, 8803238 + ... + 8803251.

It is an arithmetic number, because the mean of its divisors is an integer number (35212980).

Almost surely, 2^123245423 is an apocalyptic number.

123245423 is a deficient number, since it is larger than the sum of its proper divisors (17606497).

123245423 is an equidigital number, since it uses as much as digits as its factorization.

123245423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17606496.

The product of its digits is 5760, while the sum is 26.

The square root of 123245423 is about 11101.5955159608. The cubic root of 123245423 is about 497.6495319137.

Adding to 123245423 its reverse (324542321), we get a palindrome (447787744).

The spelling of 123245423 in words is "one hundred twenty-three million, two hundred forty-five thousand, four hundred twenty-three".