2011321111069 has 2 divisors, whose sum is σ = 2011321111070. Its totient is φ = 2011321111068.

The previous prime is 2011321111039. The next prime is 2011321111097. The reversal of 2011321111069 is 9601111231102.

It is an a-pointer prime, because the next prime (2011321111097) can be obtained adding 2011321111069 to its sum of digits (28).

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1164323005444 + 846998105625 = 1079038^2 + 920325^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011321111069 - 2¹³ = 2011321102877 is a prime.

It is a super-2 number, since 2×2011321111069² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011321111039) 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 as a sum of consecutive naturals, namely, 1005660555534 + 1005660555535.

It is an arithmetic number, because the mean of its divisors is an integer number (1005660555535).

Almost surely, 2^{2011321111069} is an apocalyptic number.

It is an amenable number.

2011321111069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011321111069 is an equidigital number, since it uses as much as digits as its factorization.

2011321111069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 28.

The spelling of 2011321111069 in words is "two trillion, eleven billion, three hundred twenty-one million, one hundred eleven thousand, sixty-nine".