21112000133311 has 16 divisors (see below), whose sum is σ = 22470308721504. Its totient is φ = 19766633324544.

The previous prime is 21112000133309. The next prime is 21112000133351. The reversal of 21112000133311 is 11333100021112.

It is a cyclic number.

It is not a de Polignac number, because 21112000133311 - 2¹ = 21112000133309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21112000133351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178437105 + ... + 178555381.

It is an arithmetic number, because the mean of its divisors is an integer number (1404394295094).

Almost surely, 2^{21112000133311} is an apocalyptic number.

21112000133311 is a deficient number, since it is larger than the sum of its proper divisors (1358308588193).

21112000133311 is a wasteful number, since it uses less digits than its factorization.

21112000133311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 172890.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 21112000133311 its reverse (11333100021112), we get a palindrome (32445100154423).

The spelling of 21112000133311 in words is "twenty-one trillion, one hundred twelve billion, one hundred thirty-three thousand, three hundred eleven".