21113104112 has 10 divisors (see below), whose sum is σ = 40906639248. Its totient is φ = 10556552048.

The previous prime is 21113104109. The next prime is 21113104123. The reversal of 21113104112 is 21140131112.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 659784488 + ... + 659784519.

Almost surely, 2^21113104112 is an apocalyptic number.

It is an amenable number.

21113104112 is a deficient number, since it is larger than the sum of its proper divisors (19793535136).

21113104112 is a wasteful number, since it uses less digits than its factorization.

21113104112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1319569015 (or 1319569009 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 21113104112 its reverse (21140131112), we get a palindrome (42253235224).

The spelling of 21113104112 in words is "twenty-one billion, one hundred thirteen million, one hundred four thousand, one hundred twelve".