2011223012311 has 2 divisors, whose sum is σ = 2011223012312. Its totient is φ = 2011223012310.

The previous prime is 2011223012287. The next prime is 2011223012329. The reversal of 2011223012311 is 1132103221102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011223012311 - 2¹¹ = 2011223010263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011223012341) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005611506155 + 1005611506156.

It is an arithmetic number, because the mean of its divisors is an integer number (1005611506156).

Almost surely, 2^{2011223012311} is an apocalyptic number.

2011223012311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011223012311 is an equidigital number, since it uses as much as digits as its factorization.

2011223012311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 2011223012311 its reverse (1132103221102), we get a palindrome (3143326233413).

The spelling of 2011223012311 in words is "two trillion, eleven billion, two hundred twenty-three million, twelve thousand, three hundred eleven".