21423041122 has 16 divisors (see below), whose sum is σ = 36989426880. Its totient is φ = 9115249968.

The previous prime is 21423041111. The next prime is 21423041183. The reversal of 21423041122 is 22114032412.

It is a junction number, because it is equal to n+sod(n) for n = 21423041093 and 21423041102.

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 7 ways as a sum of consecutive naturals, for example, 5502433 + ... + 5506324.

It is an arithmetic number, because the mean of its divisors is an integer number (2311839180).

Almost surely, 2^21423041122 is an apocalyptic number.

21423041122 is a deficient number, since it is larger than the sum of its proper divisors (15566385758).

21423041122 is a wasteful number, since it uses less digits than its factorization.

21423041122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11008905.

The product of its (nonzero) digits is 768, while the sum is 22.

Adding to 21423041122 its reverse (22114032412), we get a palindrome (43537073534).

The spelling of 21423041122 in words is "twenty-one billion, four hundred twenty-three million, forty-one thousand, one hundred twenty-two".