123424231 has 8 divisors (see below), whose sum is σ = 141284864. Its totient is φ = 105620760.

The previous prime is 123424211. The next prime is 123424241. The reversal of 123424231 is 132424321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123424231 - 2²³ = 115035623 is a prime.

It is a super-2 number, since 2×123424231² = 30467081595882722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123424211) 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, 9555 + ... + 18388.

It is an arithmetic number, because the mean of its divisors is an integer number (17660608).

Almost surely, 2^123424231 is an apocalyptic number.

123424231 is a deficient number, since it is larger than the sum of its proper divisors (17860633).

123424231 is an equidigital number, since it uses as much as digits as its factorization.

123424231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 28581.

The product of its digits is 1152, while the sum is 22.

The square root of 123424231 is about 11109.6458539415. The cubic root of 123424231 is about 497.8900836968.

Adding to 123424231 its reverse (132424321), we get a palindrome (255848552).

It can be divided in two parts, 12 and 3424231, that added together give a palindrome (3424243).

The spelling of 123424231 in words is "one hundred twenty-three million, four hundred twenty-four thousand, two hundred thirty-one".