123045233 has 4 divisors (see below), whose sum is σ = 123067620. Its totient is φ = 123022848.

The previous prime is 123045229. The next prime is 123045253. The reversal of 123045233 is 332540321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 332540321 = 4049 ⋅82129.

It can be written as a sum of positive squares in 2 ways, for example, as 14531344 + 108513889 = 3812^2 + 10417^2 .

It is a cyclic number.

It is not a de Polignac number, because 123045233 - 2² = 123045229 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123045199 and 123045208.

It is not an unprimeable number, because it can be changed into a prime (123045253) 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, 3353 + ... + 16041.

It is an arithmetic number, because the mean of its divisors is an integer number (30766905).

Almost surely, 2^123045233 is an apocalyptic number.

It is an amenable number.

123045233 is a deficient number, since it is larger than the sum of its proper divisors (22387).

123045233 is an equidigital number, since it uses as much as digits as its factorization.

123045233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22386.

The product of its (nonzero) digits is 2160, while the sum is 23.

The square root of 123045233 is about 11092.5755800896. The cubic root of 123045233 is about 497.3799385372.

Adding to 123045233 its reverse (332540321), we get a palindrome (455585554).

The spelling of 123045233 in words is "one hundred twenty-three million, forty-five thousand, two hundred thirty-three".