21300000112 has 20 divisors (see below), whose sum is σ = 41377650520. Its totient is φ = 10621896768.

The previous prime is 21300000101. The next prime is 21300000119. The reversal of 21300000112 is 21100000312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21300000119) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1750203 + ... + 1762330.

It is an arithmetic number, because the mean of its divisors is an integer number (2068882526).

Almost surely, 2^21300000112 is an apocalyptic number.

It is an amenable number.

21300000112 is a deficient number, since it is larger than the sum of its proper divisors (20077650408).

21300000112 is a wasteful number, since it uses less digits than its factorization.

21300000112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3512920 (or 3512914 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 21300000112 its reverse (21100000312), we get a palindrome (42400000424).

The spelling of 21300000112 in words is "twenty-one billion, three hundred million, one hundred twelve", and thus it is an aban number.