21332311110113 has 4 divisors (see below), whose sum is σ = 21332516963268. Its totient is φ = 21332105256960.

The previous prime is 21332311110107. The next prime is 21332311110169. The reversal of 21332311110113 is 31101111323312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2540016750049 + 18792294360064 = 1593743^2 + 4335008^2 .

It is a cyclic number.

It is not a de Polignac number, because 21332311110113 - 2¹² = 21332311106017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21332311110013) 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 3 ways as a sum of consecutive naturals, for example, 102771056 + ... + 102978417.

It is an arithmetic number, because the mean of its divisors is an integer number (5333129240817).

Almost surely, 2^{21332311110113} is an apocalyptic number.

It is an amenable number.

21332311110113 is a deficient number, since it is larger than the sum of its proper divisors (205853155).

21332311110113 is a wasteful number, since it uses less digits than its factorization.

21332311110113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205853154.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 21332311110113 its reverse (31101111323312), we get a palindrome (52433422433425).

The spelling of 21332311110113 in words is "twenty-one trillion, three hundred thirty-two billion, three hundred eleven million, one hundred ten thousand, one hundred thirteen".