123434023 has 4 divisors (see below), whose sum is σ = 124587720. Its totient is φ = 122280328.

The previous prime is 123434009. The next prime is 123434029. The reversal of 123434023 is 320434321.

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 123434023 - 2⁹ = 123433511 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123433985 and 123434003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123434029) 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, 576688 + ... + 576901.

It is an arithmetic number, because the mean of its divisors is an integer number (31146930).

Almost surely, 2^123434023 is an apocalyptic number.

123434023 is a deficient number, since it is larger than the sum of its proper divisors (1153697).

123434023 is a wasteful number, since it uses less digits than its factorization.

123434023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1153696.

The product of its (nonzero) digits is 1728, while the sum is 22.

The square root of 123434023 is about 11110.0865433173. The cubic root of 123434023 is about 497.9032502383.

Adding to 123434023 its reverse (320434321), we get a palindrome (443868344).

The spelling of 123434023 in words is "one hundred twenty-three million, four hundred thirty-four thousand, twenty-three".