211321300000111 has 24 divisors (see below), whose sum is σ = 251961948377136. Its totient is φ = 176662447315200.

The previous prime is 211321300000087. The next prime is 211321300000141. The reversal of 211321300000111 is 111000003123112.

It is a happy number.

It is not a de Polignac number, because 211321300000111 - 2⁷ = 211321299999983 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 (211321300000141) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 318323626 + ... + 318986791.

It is an arithmetic number, because the mean of its divisors is an integer number (10498414515714).

Almost surely, 2^{211321300000111} is an apocalyptic number.

211321300000111 is a deficient number, since it is larger than the sum of its proper divisors (40640648377025).

211321300000111 is a wasteful number, since it uses less digits than its factorization.

211321300000111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 637310599 (or 637310592 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 211321300000111 its reverse (111000003123112), we get a palindrome (322321303123223).

The spelling of 211321300000111 in words is "two hundred eleven trillion, three hundred twenty-one billion, three hundred million, one hundred eleven", and thus it is an aban number.