2011321000291 has 2 divisors, whose sum is σ = 2011321000292. Its totient is φ = 2011321000290.

The previous prime is 2011321000223. The next prime is 2011321000301. The reversal of 2011321000291 is 1920001231102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2011321000291 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011321000691) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005660500145 + 1005660500146.

It is an arithmetic number, because the mean of its divisors is an integer number (1005660500146).

Almost surely, 2^{2011321000291} is an apocalyptic number.

2011321000291 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011321000291 is an equidigital number, since it uses as much as digits as its factorization.

2011321000291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 2011321000291 its reverse (1920001231102), we get a palindrome (3931322231393).

The spelling of 2011321000291 in words is "two trillion, eleven billion, three hundred twenty-one million, two hundred ninety-one", and thus it is an aban number.