12123040430 has 16 divisors (see below), whose sum is σ = 21919330944. Its totient is φ = 4827469920.

The previous prime is 12123040379. The next prime is 12123040441. The reversal of 12123040430 is 3404032121.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2715941 + ... + 2720400.

It is an arithmetic number, because the mean of its divisors is an integer number (1369958184).

Almost surely, 2^12123040430 is an apocalyptic number.

12123040430 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12123040430 is a deficient number, since it is larger than the sum of its proper divisors (9796290514).

12123040430 is a wasteful number, since it uses less digits than its factorization.

12123040430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5436571.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 12123040430 its reverse (3404032121), we get a palindrome (15527072551).

The spelling of 12123040430 in words is "twelve billion, one hundred twenty-three million, forty thousand, four hundred thirty".