2011313321 has 4 divisors (see below), whose sum is σ = 2011713792. Its totient is φ = 2010912852.

The previous prime is 2011313287. The next prime is 2011313323. The reversal of 2011313321 is 1233131102.

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 2011313321 - 2⁶ = 2011313257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2011313321.

It is not an unprimeable number, because it can be changed into a prime (2011313323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 192605 + ... + 202778.

It is an arithmetic number, because the mean of its divisors is an integer number (502928448).

Almost surely, 2^2011313321 is an apocalyptic number.

It is an amenable number.

2011313321 is a deficient number, since it is larger than the sum of its proper divisors (400471).

2011313321 is an equidigital number, since it uses as much as digits as its factorization.

2011313321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 400470.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 2011313321 is about 44847.6679549784. The cubic root of 2011313321 is about 1262.2922330519.

Adding to 2011313321 its reverse (1233131102), we get a palindrome (3244444423).

The spelling of 2011313321 in words is "two billion, eleven million, three hundred thirteen thousand, three hundred twenty-one".