21432241112 has 16 divisors (see below), whose sum is σ = 40735938840. Its totient is φ = 10569324096.

The previous prime is 21432241109. The next prime is 21432241141. The reversal of 21432241112 is 21114223412.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18348938 + ... + 18350105.

Almost surely, 2^21432241112 is an apocalyptic number.

It is an amenable number.

21432241112 is a deficient number, since it is larger than the sum of its proper divisors (19303697728).

21432241112 is a wasteful number, since it uses less digits than its factorization.

21432241112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 36699122 (or 36699118 counting only the distinct ones).

The product of its digits is 768, while the sum is 23.

Adding to 21432241112 its reverse (21114223412), we get a palindrome (42546464524).

The spelling of 21432241112 in words is "twenty-one billion, four hundred thirty-two million, two hundred forty-one thousand, one hundred twelve".