123244123 has 4 divisors (see below), whose sum is σ = 123305760. Its totient is φ = 123182488.

The previous prime is 123244117. The next prime is 123244141. The reversal of 123244123 is 321442321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 321442321 = 3209 ⋅100169.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123244123 is a prime.

It is a super-2 number, since 2×123244123² = 30378227708078258, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123244094 and 123244103.

It is not an unprimeable number, because it can be changed into a prime (123244103) 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, 27715 + ... + 31852.

It is an arithmetic number, because the mean of its divisors is an integer number (30826440).

Almost surely, 2^123244123 is an apocalyptic number.

123244123 is a deficient number, since it is larger than the sum of its proper divisors (61637).

123244123 is an equidigital number, since it uses as much as digits as its factorization.

123244123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61636.

The product of its digits is 1152, while the sum is 22.

The square root of 123244123 is about 11101.5369656638. The cubic root of 123244123 is about 497.6477821620.

Adding to 123244123 its reverse (321442321), we get a palindrome (444686444).

The spelling of 123244123 in words is "one hundred twenty-three million, two hundred forty-four thousand, one hundred twenty-three".