21110113014113 has 8 divisors (see below), whose sum is σ = 21115712248296. Its totient is φ = 21104514288000.

The previous prime is 21110113014031. The next prime is 21110113014119. The reversal of 21110113014113 is 31141031101112.

It can be written as a sum of positive squares in 4 ways, for example, as 4267723827409 + 16842389186704 = 2065847^2 + 4103948^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21110113014113 - 2³⁴ = 21092933144929 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21110113014119) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 91627763 + ... + 91857863.

It is an arithmetic number, because the mean of its divisors is an integer number (2639464031037).

Almost surely, 2^{21110113014113} is an apocalyptic number.

It is an amenable number.

21110113014113 is a deficient number, since it is larger than the sum of its proper divisors (5599234183).

21110113014113 is a wasteful number, since it uses less digits than its factorization.

21110113014113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254035.

The product of its (nonzero) digits is 72, while the sum is 20.

Adding to 21110113014113 its reverse (31141031101112), we get a palindrome (52251144115225).

The spelling of 21110113014113 in words is "twenty-one trillion, one hundred ten billion, one hundred thirteen million, fourteen thousand, one hundred thirteen".