12123234430434 has 24 divisors (see below), whose sum is σ = 26443296582300. Its totient is φ = 4013956812768.

The previous prime is 12123234430409. The next prime is 12123234430457. The reversal of 12123234430434 is 43403443232121.

12123234430434 is a `hidden beast` number, since 1 + 2 + 1 + 2 + 3 + 2 + 344 + 304 + 3 + 4 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8585468429409 + 3537766001025 = 2930097^2 + 1880895^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2260108137 + ... + 2260113500.

Almost surely, 2^{12123234430434} is an apocalyptic number.

12123234430434 is an abundant number, since it is smaller than the sum of its proper divisors (14320062151866).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12123234430434 is a wasteful number, since it uses less digits than its factorization.

12123234430434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4520221794 (or 4520221791 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 36.

Adding to 12123234430434 its reverse (43403443232121), we get a palindrome (55526677662555).

The spelling of 12123234430434 in words is "twelve trillion, one hundred twenty-three billion, two hundred thirty-four million, four hundred thirty thousand, four hundred thirty-four".