1061000111111 has 2 divisors, whose sum is σ = 1061000111112. Its totient is φ = 1061000111110.

The previous prime is 1061000111047. The next prime is 1061000111153. The reversal of 1061000111111 is 1111110001601.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1061000111111 - 2⁶ = 1061000111047 is a prime.

It is a super-2 number, since 2×1061000111111² (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 (1061000111911) 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, 530500055555 + 530500055556.

It is an arithmetic number, because the mean of its divisors is an integer number (530500055556).

Almost surely, 2^{1061000111111} is an apocalyptic number.

1061000111111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1061000111111 is an equidigital number, since it uses as much as digits as its factorization.

1061000111111 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 14.

Adding to 1061000111111 its reverse (1111110001601), we get a palindrome (2172110112712).

The spelling of 1061000111111 in words is "one trillion, sixty-one billion, one hundred eleven thousand, one hundred eleven".