123230121 has 8 divisors (see below), whose sum is σ = 187779264. Its totient is φ = 70417200.

The previous prime is 123230117. The next prime is 123230137. The reversal of 123230121 is 121032321.

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

It is not a de Polignac number, because 123230121 - 2² = 123230117 is a prime.

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

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 123230121.

It is not an unprimeable number, because it can be changed into a prime (123230111) 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, 2934030 + ... + 2934071.

It is an arithmetic number, because the mean of its divisors is an integer number (23472408).

Almost surely, 2^123230121 is an apocalyptic number.

It is an amenable number.

123230121 is a deficient number, since it is larger than the sum of its proper divisors (64549143).

123230121 is an equidigital number, since it uses as much as digits as its factorization.

123230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5868111.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 123230121 is about 11100.9063143511. The cubic root of 123230121 is about 497.6289352102.

Adding to 123230121 its reverse (121032321), we get a palindrome (244262442).

The spelling of 123230121 in words is "one hundred twenty-three million, two hundred thirty thousand, one hundred twenty-one".