123220233113 has 4 divisors (see below), whose sum is σ = 129705508560. Its totient is φ = 116734957668.

The previous prime is 123220233109. The next prime is 123220233179. The reversal of 123220233113 is 311332022321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123220233113 - 2² = 123220233109 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123220233313) 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, 3242637695 + ... + 3242637732.

It is an arithmetic number, because the mean of its divisors is an integer number (32426377140).

Almost surely, 2^123220233113 is an apocalyptic number.

It is an amenable number.

123220233113 is a deficient number, since it is larger than the sum of its proper divisors (6485275447).

123220233113 is an equidigital number, since it uses as much as digits as its factorization.

123220233113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6485275446.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 123220233113 its reverse (311332022321), we get a palindrome (434552255434).

The spelling of 123220233113 in words is "one hundred twenty-three billion, two hundred twenty million, two hundred thirty-three thousand, one hundred thirteen".