12432022023421 has 64 divisors (see below), whose sum is σ = 16725363572736. Its totient is φ = 8924230598400.

The previous prime is 12432022023269. The next prime is 12432022023461.

12432022023421 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 12432022023421 - 2¹¹ = 12432022021373 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12432022023421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12432022023461) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1099103356 + ... + 1099114666.

It is an arithmetic number, because the mean of its divisors is an integer number (261333805824).

Almost surely, 2^{12432022023421} is an apocalyptic number.

12432022023421 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12432022023421 is a deficient number, since it is larger than the sum of its proper divisors (4293341549315).

12432022023421 is a wasteful number, since it uses less digits than its factorization.

12432022023421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13442.

The product of its (nonzero) digits is 9216, while the sum is 28.

It can be divided in two parts, 1243202 and 2023421, that added together give a palindrome (3266623).

The spelling of 12432022023421 in words is "twelve trillion, four hundred thirty-two billion, twenty-two million, twenty-three thousand, four hundred twenty-one".