2011331240311 has 2 divisors, whose sum is σ = 2011331240312. Its totient is φ = 2011331240310.

The previous prime is 2011331240309. The next prime is 2011331240329. The reversal of 2011331240311 is 1130421331102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2011331240311 - 2¹ = 2011331240309 is a prime.

Together with 2011331240309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011331244311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005665620155 + 1005665620156.

It is an arithmetic number, because the mean of its divisors is an integer number (1005665620156).

Almost surely, 2^{2011331240311} is an apocalyptic number.

2011331240311 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011331240311 is an equidigital number, since it uses as much as digits as its factorization.

2011331240311 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 2011331240311 its reverse (1130421331102), we get a palindrome (3141752571413).

The spelling of 2011331240311 in words is "two trillion, eleven billion, three hundred thirty-one million, two hundred forty thousand, three hundred eleven".