320111102111 has 16 divisors (see below), whose sum is σ = 328185285120. Its totient is φ = 312090819840.

The previous prime is 320111102099. The next prime is 320111102119. The reversal of 320111102111 is 111201111023.

It is a cyclic number.

It is not a de Polignac number, because 320111102111 - 2³⁰ = 319037360287 is a prime.

It is a super-2 number, since 2×320111102111² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320111102119) 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, 27856655 + ... + 27868143.

It is an arithmetic number, because the mean of its divisors is an integer number (20511580320).

Almost surely, 2^320111102111 is an apocalyptic number.

320111102111 is a deficient number, since it is larger than the sum of its proper divisors (8074183009).

320111102111 is a wasteful number, since it uses less digits than its factorization.

320111102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13774.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 320111102111 its reverse (111201111023), we get a palindrome (431312213134).

The spelling of 320111102111 in words is "three hundred twenty billion, one hundred eleven million, one hundred two thousand, one hundred eleven".