123023611 has 4 divisors (see below), whose sum is σ = 130260312. Its totient is φ = 115786912.

The previous prime is 123023561. The next prime is 123023627. The reversal of 123023611 is 116320321.

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 123023611 - 2²⁵ = 89469179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123023011) 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, 3618325 + ... + 3618358.

It is an arithmetic number, because the mean of its divisors is an integer number (32565078).

Almost surely, 2^123023611 is an apocalyptic number.

123023611 is a deficient number, since it is larger than the sum of its proper divisors (7236701).

123023611 is an equidigital number, since it uses as much as digits as its factorization.

123023611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7236700.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 123023611 is about 11091.6009214180. The cubic root of 123023611 is about 497.3508029671.

Adding to 123023611 its reverse (116320321), we get a palindrome (239343932).

The spelling of 123023611 in words is "one hundred twenty-three million, twenty-three thousand, six hundred eleven".