12040423102 has 4 divisors (see below), whose sum is σ = 18060634656. Its totient is φ = 6020211550.

The previous prime is 12040423091. The next prime is 12040423147. The reversal of 12040423102 is 20132404021.

It is a semiprime because it is the product of two primes.

It is a self number, because there is not a number n which added to its sum of digits gives 12040423102.

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 as a sum of consecutive naturals, namely, 3010105774 + ... + 3010105777.

It is an arithmetic number, because the mean of its divisors is an integer number (4515158664).

Almost surely, 2^12040423102 is an apocalyptic number.

12040423102 is a deficient number, since it is larger than the sum of its proper divisors (6020211554).

12040423102 is an equidigital number, since it uses as much as digits as its factorization.

12040423102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6020211553.

The product of its (nonzero) digits is 384, while the sum is 19.

Adding to 12040423102 its reverse (20132404021), we get a palindrome (32172827123).

The spelling of 12040423102 in words is "twelve billion, forty million, four hundred twenty-three thousand, one hundred two".