11111101061 has 2 divisors, whose sum is σ = 11111101062. Its totient is φ = 11111101060.

The previous prime is 11111101039. The next prime is 11111101069. The reversal of 11111101061 is 16010111111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10397676961 + 713424100 = 101969^2 + 26710^2 .

It is an emirp because it is prime and its reverse (16010111111) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11111101061 - 2⁶ = 11111100997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11111101069) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5555550530 + 5555550531.

It is an arithmetic number, because the mean of its divisors is an integer number (5555550531).

Almost surely, 2^11111101061 is an apocalyptic number.

It is an amenable number.

11111101061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11111101061 is an equidigital number, since it uses as much as digits as its factorization.

11111101061 is an evil number, because the sum of its binary digits is even.

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

Adding to 11111101061 its reverse (16010111111), we get a palindrome (27121212172).

The spelling of 11111101061 in words is "eleven billion, one hundred eleven million, one hundred one thousand, sixty-one".