12431421101242 has 128 divisors (see below), whose sum is σ = 23667338419200. Its totient is φ = 4812996672000.

The previous prime is 12431421101207. The next prime is 12431421101251. The reversal of 12431421101242 is 24210112413421.

12431421101242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-4 number, since 4×12431421101242⁴ (a number of 53 digits) contains 4444 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12431421101242.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 32211117 + ... + 32594767.

It is an arithmetic number, because the mean of its divisors is an integer number (184901081400).

Almost surely, 2^{12431421101242} is an apocalyptic number.

12431421101242 is a deficient number, since it is larger than the sum of its proper divisors (11235917317958).

12431421101242 is a wasteful number, since it uses less digits than its factorization.

12431421101242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 383852.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 12431421101242 its reverse (24210112413421), we get a palindrome (36641533514663).

The spelling of 12431421101242 in words is "twelve trillion, four hundred thirty-one billion, four hundred twenty-one million, one hundred one thousand, two hundred forty-two".