422121512432423 has 4 divisors (see below), whose sum is σ = 422412430085448. Its totient is φ = 421830594779400.

The previous prime is 422121512432401. The next prime is 422121512432549. The reversal of 422121512432423 is 324234215121224.

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 422121512432423 - 2³² = 422117217465127 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (422121512435423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 145458824336 + ... + 145458827237.

It is an arithmetic number, because the mean of its divisors is an integer number (105603107521362).

Almost surely, 2^{422121512432423} is an apocalyptic number.

422121512432423 is a deficient number, since it is larger than the sum of its proper divisors (290917653025).

422121512432423 is a wasteful number, since it uses less digits than its factorization.

422121512432423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 290917653024.

The product of its digits is 184320, while the sum is 38.

Adding to 422121512432423 its reverse (324234215121224), we get a palindrome (746355727553647).

The spelling of 422121512432423 in words is "four hundred twenty-two trillion, one hundred twenty-one billion, five hundred twelve million, four hundred thirty-two thousand, four hundred twenty-three".