21324223412011 has 32 divisors (see below), whose sum is σ = 23965214934528. Its totient is φ = 18840360222720.

The previous prime is 21324223411999. The next prime is 21324223412053. The reversal of 21324223412011 is 11021432242312.

It is not a de Polignac number, because 21324223412011 - 2⁹ = 21324223411499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21324223412711) 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, 60532695 + ... + 60883951.

It is an arithmetic number, because the mean of its divisors is an integer number (748912966704).

Almost surely, 2^{21324223412011} is an apocalyptic number.

21324223412011 is a deficient number, since it is larger than the sum of its proper divisors (2640991522517).

21324223412011 is a wasteful number, since it uses less digits than its factorization.

21324223412011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 352951.

The product of its (nonzero) digits is 4608, while the sum is 28.

Adding to 21324223412011 its reverse (11021432242312), we get a palindrome (32345655654323).

The spelling of 21324223412011 in words is "twenty-one trillion, three hundred twenty-four billion, two hundred twenty-three million, four hundred twelve thousand, eleven".