123232123 has 4 divisors (see below), whose sum is σ = 140836720. Its totient is φ = 105627528.

The previous prime is 123232121. The next prime is 123232141. The reversal of 123232123 is 321232321.

123232123 is an esthetic number in base 10, because in such base its adjacent digits differ by 1.

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 123232123 - 2¹ = 123232121 is a prime.

It is a super-2 number, since 2×123232123² = 30372312278174258, which contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123232123.

It is not an unprimeable number, because it can be changed into a prime (123232121) 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, 8802288 + ... + 8802301.

It is an arithmetic number, because the mean of its divisors is an integer number (35209180).

Almost surely, 2^123232123 is an apocalyptic number.

123232123 is a deficient number, since it is larger than the sum of its proper divisors (17604597).

123232123 is an equidigital number, since it uses as much as digits as its factorization.

123232123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17604596.

The product of its digits is 432, while the sum is 19.

The square root of 123232123 is about 11100.9964868024. The cubic root of 123232123 is about 497.6316300268.

Adding to 123232123 its reverse (321232321), we get a palindrome (444464444).

The spelling of 123232123 in words is "one hundred twenty-three million, two hundred thirty-two thousand, one hundred twenty-three".