12423221034 has 32 divisors (see below), whose sum is σ = 28450486656. Its totient is φ = 3542672640.

The previous prime is 12423221011. The next prime is 12423221099. The reversal of 12423221034 is 43012232421.

It is a happy number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12423220995 and 12423221013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 261987 + ... + 305750.

It is an arithmetic number, because the mean of its divisors is an integer number (889077708).

Almost surely, 2^12423221034 is an apocalyptic number.

12423221034 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

12423221034 is an abundant number, since it is smaller than the sum of its proper divisors (16027265622).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12423221034 is a wasteful number, since it uses less digits than its factorization.

12423221034 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 568270.

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 12423221034 its reverse (43012232421), we get a palindrome (55435453455).

The spelling of 12423221034 in words is "twelve billion, four hundred twenty-three million, two hundred twenty-one thousand, thirty-four".