1111011061 has 2 divisors, whose sum is σ = 1111011062. Its totient is φ = 1111011060.

The previous prime is 1111011059. The next prime is 1111011079. The reversal of 1111011061 is 1601101111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 846460836 + 264550225 = 29094^2 + 16265^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111011061 - 2¹ = 1111011059 is a prime.

Together with 1111011059, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111011961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555505530 + 555505531.

It is an arithmetic number, because the mean of its divisors is an integer number (555505531).

Almost surely, 2^1111011061 is an apocalyptic number.

It is an amenable number.

1111011061 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111011061 is an equidigital number, since it uses as much as digits as its factorization.

1111011061 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.

The square root of 1111011061 is about 33331.8325478813. The cubic root of 1111011061 is about 1035.7130798224.

Adding to 1111011061 its reverse (1601101111), we get a palindrome (2712112172).

The spelling of 1111011061 in words is "one billion, one hundred eleven million, eleven thousand, sixty-one".