21414324111 has 16 divisors (see below), whose sum is σ = 28907924448. Its totient is φ = 14099184000.

The previous prime is 21414324089. The next prime is 21414324137. The reversal of 21414324111 is 11142341412.

It is a happy number.

It is not a de Polignac number, because 21414324111 - 2¹⁰ = 21414323087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21414324011) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 31281 + ... + 209301.

It is an arithmetic number, because the mean of its divisors is an integer number (1806745278).

Almost surely, 2^21414324111 is an apocalyptic number.

21414324111 is a deficient number, since it is larger than the sum of its proper divisors (7493600337).

21414324111 is a wasteful number, since it uses less digits than its factorization.

21414324111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178522.

The product of its digits is 768, while the sum is 24.

Adding to 21414324111 its reverse (11142341412), we get a palindrome (32556665523).

The spelling of 21414324111 in words is "twenty-one billion, four hundred fourteen million, three hundred twenty-four thousand, one hundred eleven".