2011321113331 has 4 divisors (see below), whose sum is σ = 2011323953232. Its totient is φ = 2011318273432.

The previous prime is 2011321113317. The next prime is 2011321113349. The reversal of 2011321113331 is 1333111231102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2011321113331 - 2⁹ = 2011321112819 is a prime.

It is a super-2 number, since 2×2011321113331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2011321113631) 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, 604581 + ... + 2094793.

It is an arithmetic number, because the mean of its divisors is an integer number (502830988308).

Almost surely, 2^{2011321113331} is an apocalyptic number.

2011321113331 is a deficient number, since it is larger than the sum of its proper divisors (2839901).

2011321113331 is a wasteful number, since it uses less digits than its factorization.

2011321113331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2839900.

The product of its (nonzero) digits is 324, while the sum is 22.

Adding to 2011321113331 its reverse (1333111231102), we get a palindrome (3344432344433).

The spelling of 2011321113331 in words is "two trillion, eleven billion, three hundred twenty-one million, one hundred thirteen thousand, three hundred thirty-one".