123412055 has 16 divisors (see below), whose sum is σ = 160073760. Its totient is φ = 90799488.

The previous prime is 123412019. The next prime is 123412063. The reversal of 123412055 is 550214321.

It is not a de Polignac number, because 123412055 - 2¹⁶ = 123346519 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123412055.

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 15 ways as a sum of consecutive naturals, for example, 15041 + ... + 21749.

It is an arithmetic number, because the mean of its divisors is an integer number (10004610).

Almost surely, 2^123412055 is an apocalyptic number.

123412055 is a deficient number, since it is larger than the sum of its proper divisors (36661705).

123412055 is a wasteful number, since it uses less digits than its factorization.

123412055 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7010.

The product of its (nonzero) digits is 1200, while the sum is 23.

The square root of 123412055 is about 11109.0978481603. The cubic root of 123412055 is about 497.8737106044.

Adding to 123412055 its reverse (550214321), we get a palindrome (673626376).

The spelling of 123412055 in words is "one hundred twenty-three million, four hundred twelve thousand, fifty-five".