21113120332 has 12 divisors (see below), whose sum is σ = 37468354896. Its totient is φ = 10407876080.

The previous prime is 21113120311. The next prime is 21113120341. The reversal of 21113120332 is 23302131112.

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, 37170703 + ... + 37171270.

It is an arithmetic number, because the mean of its divisors is an integer number (3122362908).

Almost surely, 2^21113120332 is an apocalyptic number.

It is an amenable number.

21113120332 is a deficient number, since it is larger than the sum of its proper divisors (16355234564).

21113120332 is a wasteful number, since it uses less digits than its factorization.

21113120332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74342048 (or 74342046 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 21113120332 its reverse (23302131112), we get a palindrome (44415251444).

The spelling of 21113120332 in words is "twenty-one billion, one hundred thirteen million, one hundred twenty thousand, three hundred thirty-two".