123120233 has 4 divisors (see below), whose sum is σ = 123427668. Its totient is φ = 122812800.

The previous prime is 123120227. The next prime is 123120241. The reversal of 123120233 is 332021321.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 68773849 + 54346384 = 8293^2 + 7372^2 .

It is a cyclic number.

It is not a de Polignac number, because 123120233 - 2²⁰ = 122071657 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123120203) 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, 153116 + ... + 153917.

It is an arithmetic number, because the mean of its divisors is an integer number (30856917).

Almost surely, 2^123120233 is an apocalyptic number.

It is an amenable number.

123120233 is a deficient number, since it is larger than the sum of its proper divisors (307435).

123120233 is an equidigital number, since it uses as much as digits as its factorization.

123120233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 307434.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 123120233 is about 11095.9557046701. The cubic root of 123120233 is about 497.4809743320.

Adding to 123120233 its reverse (332021321), we get a palindrome (455141554).

The spelling of 123120233 in words is "one hundred twenty-three million, one hundred twenty thousand, two hundred thirty-three".