111010101061 has 2 divisors, whose sum is σ = 111010101062. Its totient is φ = 111010101060.

The previous prime is 111010101049. The next prime is 111010101067. The reversal of 111010101061 is 160101010111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 104674896225 + 6335204836 = 323535^2 + 79594^2 .

It is a cyclic number.

It is not a de Polignac number, because 111010101061 - 2⁵ = 111010101029 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111010101067) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55505050530 + 55505050531.

It is an arithmetic number, because the mean of its divisors is an integer number (55505050531).

Almost surely, 2^111010101061 is an apocalyptic number.

It is an amenable number.

111010101061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111010101061 is an equidigital number, since it uses as much as digits as its factorization.

111010101061 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 13.

Adding to 111010101061 its reverse (160101010111), we get a palindrome (271111111172).

The spelling of 111010101061 in words is "one hundred eleven billion, ten million, one hundred one thousand, sixty-one".