123040252 has 12 divisors (see below), whose sum is σ = 218970360. Its totient is φ = 60477296.

The previous prime is 123040241. The next prime is 123040273. The reversal of 123040252 is 252040321.

It is a super-2 number, since 2×123040252² = 30277807224447008, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 260443 + ... + 260914.

It is an arithmetic number, because the mean of its divisors is an integer number (18247530).

Almost surely, 2^123040252 is an apocalyptic number.

It is an amenable number.

123040252 is a deficient number, since it is larger than the sum of its proper divisors (95930108).

123040252 is a wasteful number, since it uses less digits than its factorization.

123040252 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 521420 (or 521418 counting only the distinct ones).

The product of its (nonzero) digits is 480, while the sum is 19.

The square root of 123040252 is about 11092.3510582743. The cubic root of 123040252 is about 497.3732269595.

Adding to 123040252 its reverse (252040321), we get a palindrome (375080573).

The spelling of 123040252 in words is "one hundred twenty-three million, forty thousand, two hundred fifty-two".