12242020423 has 4 divisors (see below), whose sum is σ = 12363228648. Its totient is φ = 12120812200.

The previous prime is 12242020409. The next prime is 12242020451. The reversal of 12242020423 is 32402024221.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12242020423 - 2¹³ = 12242012231 is a prime.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12242020394 and 12242020403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12242020403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 60603961 + ... + 60604162.

It is an arithmetic number, because the mean of its divisors is an integer number (3090807162).

Almost surely, 2^12242020423 is an apocalyptic number.

12242020423 is a deficient number, since it is larger than the sum of its proper divisors (121208225).

12242020423 is a wasteful number, since it uses less digits than its factorization.

12242020423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 121208224.

The product of its (nonzero) digits is 1536, while the sum is 22.

Adding to 12242020423 its reverse (32402024221), we get a palindrome (44644044644).

The spelling of 12242020423 in words is "twelve billion, two hundred forty-two million, twenty thousand, four hundred twenty-three".