123033243 has 4 divisors (see below), whose sum is σ = 164044328. Its totient is φ = 82022160.

The previous prime is 123033221. The next prime is 123033247. The reversal of 123033243 is 342330321.

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

It is not a de Polignac number, because 123033243 - 2⁶ = 123033179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123033247) 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, 20505538 + ... + 20505543.

It is an arithmetic number, because the mean of its divisors is an integer number (41011082).

Almost surely, 2^123033243 is an apocalyptic number.

123033243 is a deficient number, since it is larger than the sum of its proper divisors (41011085).

123033243 is an equidigital number, since it uses as much as digits as its factorization.

123033243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 41011084.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 123033243 is about 11092.0351153429. The cubic root of 123033243 is about 497.3637824754.

Adding to 123033243 its reverse (342330321), we get a palindrome (465363564).

The spelling of 123033243 in words is "one hundred twenty-three million, thirty-three thousand, two hundred forty-three".