12321423502422 has 16 divisors (see below), whose sum is σ = 24645443562432. Its totient is φ = 4106708407880.

The previous prime is 12321423502411. The next prime is 12321423502477. The reversal of 12321423502422 is 22420532412321.

It is a congruent number.

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, 108128208 + ... + 108242099.

It is an arithmetic number, because the mean of its divisors is an integer number (1540340222652).

Almost surely, 2^{12321423502422} is an apocalyptic number.

12321423502422 is an abundant number, since it is smaller than the sum of its proper divisors (12324020060010).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12321423502422 is a wasteful number, since it uses less digits than its factorization.

12321423502422 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 216379803.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 12321423502422 its reverse (22420532412321), we get a palindrome (34741955914743).

The spelling of 12321423502422 in words is "twelve trillion, three hundred twenty-one billion, four hundred twenty-three million, five hundred two thousand, four hundred twenty-two".