12423422421223 has 16 divisors (see below), whose sum is σ = 13779478056960. Its totient is φ = 11105262712800.

The previous prime is 12423422421211. The next prime is 12423422421269. The reversal of 12423422421223 is 32212422432421.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12423422421223 is a prime.

It is a super-2 number, since 2×12423422421223² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12423422421283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 940615 + ... + 5072632.

It is an arithmetic number, because the mean of its divisors is an integer number (861217378560).

Almost surely, 2^{12423422421223} is an apocalyptic number.

12423422421223 is a deficient number, since it is larger than the sum of its proper divisors (1356055635737).

12423422421223 is a wasteful number, since it uses less digits than its factorization.

12423422421223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6016398.

The product of its digits is 73728, while the sum is 34.

Adding to 12423422421223 its reverse (32212422432421), we get a palindrome (44635844853644).

The spelling of 12423422421223 in words is "twelve trillion, four hundred twenty-three billion, four hundred twenty-two million, four hundred twenty-one thousand, two hundred twenty-three".