213110012020111 has 16 divisors (see below), whose sum is σ = 215313430400640. Its totient is φ = 210908441779200.

The previous prime is 213110012020097. The next prime is 213110012020189. The reversal of 213110012020111 is 111020210011312.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 213110012020111 - 2⁵ = 213110012020079 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 (213110012020511) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3076788666 + ... + 3076857928.

It is an arithmetic number, because the mean of its divisors is an integer number (13457089400040).

Almost surely, 2^{213110012020111} is an apocalyptic number.

213110012020111 is a deficient number, since it is larger than the sum of its proper divisors (2203418380529).

213110012020111 is a wasteful number, since it uses less digits than its factorization.

213110012020111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82146.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 213110012020111 its reverse (111020210011312), we get a palindrome (324130222031423).

The spelling of 213110012020111 in words is "two hundred thirteen trillion, one hundred ten billion, twelve million, twenty thousand, one hundred eleven".