12423322443 has 32 divisors (see below), whose sum is σ = 19215286272. Its totient is φ = 6993079200.

The previous prime is 12423322399. The next prime is 12423322451. The reversal of 12423322443 is 34422332421.

It is not a de Polignac number, because 12423322443 - 2⁸ = 12423322187 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12423322443.

It is not an unprimeable number, because it can be changed into a prime (12423322453) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 398098 + ... + 428168.

It is an arithmetic number, because the mean of its divisors is an integer number (600477696).

Almost surely, 2^12423322443 is an apocalyptic number.

12423322443 is a deficient number, since it is larger than the sum of its proper divisors (6791963829).

12423322443 is a wasteful number, since it uses less digits than its factorization.

12423322443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30375.

The product of its digits is 27648, while the sum is 30.

Adding to 12423322443 its reverse (34422332421), we get a palindrome (46845654864).

The spelling of 12423322443 in words is "twelve billion, four hundred twenty-three million, three hundred twenty-two thousand, four hundred forty-three".