2011000211111 has 2 divisors, whose sum is σ = 2011000211112. Its totient is φ = 2011000211110.

The previous prime is 2011000211069. The next prime is 2011000211123. The reversal of 2011000211111 is 1111120001102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2011000211111 - 2¹⁸ = 2010999948967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 2011000211092 and 2011000211101.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2011000211141) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005500105555 + 1005500105556.

It is an arithmetic number, because the mean of its divisors is an integer number (1005500105556).

Almost surely, 2^{2011000211111} is an apocalyptic number.

2011000211111 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011000211111 is an equidigital number, since it uses as much as digits as its factorization.

2011000211111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 2011000211111 its reverse (1111120001102), we get a palindrome (3122120212213).

The spelling of 2011000211111 in words is "two trillion, eleven billion, two hundred eleven thousand, one hundred eleven".