121323330123 has 4 divisors (see below), whose sum is σ = 161764440168. Its totient is φ = 80882220080.

The previous prime is 121323330101. The next prime is 121323330137. The reversal of 121323330123 is 321033323121.

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 121323330123 - 2⁵ = 121323330091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 121323330093 and 121323330102.

It is not an unprimeable number, because it can be changed into a prime (121323330523) 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, 20220555018 + ... + 20220555023.

It is an arithmetic number, because the mean of its divisors is an integer number (40441110042).

Almost surely, 2^121323330123 is an apocalyptic number.

121323330123 is a deficient number, since it is larger than the sum of its proper divisors (40441110045).

121323330123 is an equidigital number, since it uses as much as digits as its factorization.

121323330123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40441110044.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 121323330123 its reverse (321033323121), we get a palindrome (442356653244).

The spelling of 121323330123 in words is "one hundred twenty-one billion, three hundred twenty-three million, three hundred thirty thousand, one hundred twenty-three".