2011112321 has 4 divisors (see below), whose sum is σ = 2075986944. Its totient is φ = 1946237700.

The previous prime is 2011112293. The next prime is 2011112339. The reversal of 2011112321 is 1232111102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011112321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2011112296 and 2011112305.

It is not an unprimeable number, because it can be changed into a prime (2011112221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32437265 + ... + 32437326.

It is an arithmetic number, because the mean of its divisors is an integer number (518996736).

Almost surely, 2^2011112321 is an apocalyptic number.

It is an amenable number.

2011112321 is a deficient number, since it is larger than the sum of its proper divisors (64874623).

2011112321 is an equidigital number, since it uses as much as digits as its factorization.

2011112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64874622.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 2011112321 is about 44845.4269797936. The cubic root of 2011112321 is about 1262.2501827178.

Adding to 2011112321 its reverse (1232111102), we get a palindrome (3243223423).

The spelling of 2011112321 in words is "two billion, eleven million, one hundred twelve thousand, three hundred twenty-one".