123342123 has 32 divisors (see below), whose sum is σ = 184384512. Its totient is φ = 72934400.

The previous prime is 123342101. The next prime is 123342137. The reversal of 123342123 is 321243321.

It is a cyclic number.

It is not a de Polignac number, because 123342123 - 2¹⁷ = 123211051 is a prime.

It is a super-2 number, since 2×123342123² = 30426558612294258, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 123342123.

It is not an unprimeable number, because it can be changed into a prime (123342143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 82543 + ... + 84023.

It is an arithmetic number, because the mean of its divisors is an integer number (5762016).

Almost surely, 2^123342123 is an apocalyptic number.

123342123 is a deficient number, since it is larger than the sum of its proper divisors (61042389).

123342123 is a wasteful number, since it uses less digits than its factorization.

123342123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1595.

The product of its digits is 864, while the sum is 21.

The square root of 123342123 is about 11105.9498918373. The cubic root of 123342123 is about 497.7796520381.

Adding to 123342123 its reverse (321243321), we get a palindrome (444585444).

The spelling of 123342123 in words is "one hundred twenty-three million, three hundred forty-two thousand, one hundred twenty-three".