123243124 has 24 divisors (see below), whose sum is σ = 217997640. Its totient is φ = 60962304.

The previous prime is 123243103. The next prime is 123243151. The reversal of 123243124 is 421342321.

It can be written as a sum of positive squares in 4 ways, for example, as 1140624 + 122102500 = 1068^2 + 11050^2 .

It is a super-2 number, since 2×123243124² = 30377735226558752, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123243095 and 123243104.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 216312 + ... + 216880.

It is an arithmetic number, because the mean of its divisors is an integer number (9083235).

Almost surely, 2^123243124 is an apocalyptic number.

It is an amenable number.

123243124 is a deficient number, since it is larger than the sum of its proper divisors (94754516).

123243124 is a wasteful number, since it uses less digits than its factorization.

123243124 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1059 (or 1057 counting only the distinct ones).

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

The square root of 123243124 is about 11101.4919718027. The cubic root of 123243124 is about 497.6464375368.

Adding to 123243124 its reverse (421342321), we get a palindrome (544585445).

The spelling of 123243124 in words is "one hundred twenty-three million, two hundred forty-three thousand, one hundred twenty-four".