12139542223429 has 4 divisors (see below), whose sum is σ = 12160802368000. Its totient is φ = 12118282078860.

The previous prime is 12139542223397. The next prime is 12139542223441. The reversal of 12139542223429 is 92432224593121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 12139542223429 - 2⁵ = 12139542223397 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12139542223489) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 10630071429 + ... + 10630072570.

It is an arithmetic number, because the mean of its divisors is an integer number (3040200592000).

Almost surely, 2^{12139542223429} is an apocalyptic number.

It is an amenable number.

12139542223429 is a deficient number, since it is larger than the sum of its proper divisors (21260144571).

12139542223429 is an equidigital number, since it uses as much as digits as its factorization.

12139542223429 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21260144570.

The product of its digits is 1866240, while the sum is 49.

The spelling of 12139542223429 in words is "twelve trillion, one hundred thirty-nine billion, five hundred forty-two million, two hundred twenty-three thousand, four hundred twenty-nine".