123423234 has 16 divisors (see below), whose sum is σ = 269287200. Its totient is φ = 37400960.

The previous prime is 123423229. The next prime is 123423239. The reversal of 123423234 is 432324321.

It is an interprime number because it is at equal distance from previous prime (123423229) and next prime (123423239).

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123423239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 934959 + ... + 935090.

It is an arithmetic number, because the mean of its divisors is an integer number (16830450).

Almost surely, 2^123423234 is an apocalyptic number.

123423234 is an abundant number, since it is smaller than the sum of its proper divisors (145863966).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123423234 is a wasteful number, since it uses less digits than its factorization.

123423234 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1870065.

The product of its digits is 3456, while the sum is 24.

The square root of 123423234 is about 11109.6009829336. The cubic root of 123423234 is about 497.8887430693. Note that the first 3 decimals are identical.

Adding to 123423234 its reverse (432324321), we get a palindrome (555747555).

It can be divided in two parts, 12342 and 3234, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 123423234 in words is "one hundred twenty-three million, four hundred twenty-three thousand, two hundred thirty-four".