12430072638242 has 16 divisors (see below), whose sum is σ = 22562148654720. Its totient is φ = 5013810811968.

The previous prime is 12430072638223. The next prime is 12430072638257. The reversal of 12430072638242 is 24283627003421.

It is a junction number, because it is equal to n+sod(n) for n = 12430072638193 and 12430072638202.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 26113597742 + ... + 26113598217.

It is an arithmetic number, because the mean of its divisors is an integer number (1410134290920).

Almost surely, 2^{12430072638242} is an apocalyptic number.

12430072638242 is a deficient number, since it is larger than the sum of its proper divisors (10132076016478).

12430072638242 is a wasteful number, since it uses less digits than its factorization.

12430072638242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52227195985.

The product of its (nonzero) digits is 774144, while the sum is 44.

The spelling of 12430072638242 in words is "twelve trillion, four hundred thirty billion, seventy-two million, six hundred thirty-eight thousand, two hundred forty-two".