2011311112321 has 4 divisors (see below), whose sum is σ = 2298641271232. Its totient is φ = 1723980953412.

The previous prime is 2011311112301. The next prime is 2011311112339. The reversal of 2011311112321 is 1232111131102.

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 not a de Polignac number, because 2011311112321 - 2⁹ = 2011311111809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011311112301) 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, 143665079445 + ... + 143665079458.

It is an arithmetic number, because the mean of its divisors is an integer number (574660317808).

Almost surely, 2^{2011311112321} is an apocalyptic number.

It is an amenable number.

2011311112321 is a deficient number, since it is larger than the sum of its proper divisors (287330158911).

2011311112321 is an equidigital number, since it uses as much as digits as its factorization.

2011311112321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 287330158910.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 2011311112321 its reverse (1232111131102), we get a palindrome (3243422243423).

The spelling of 2011311112321 in words is "two trillion, eleven billion, three hundred eleven million, one hundred twelve thousand, three hundred twenty-one".