1111161011 has 2 divisors, whose sum is σ = 1111161012. Its totient is φ = 1111161010.

The previous prime is 1111160957. The next prime is 1111161043. The reversal of 1111161011 is 1101611111.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (1101611111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111161011 is a prime.

It is a super-3 number, since 3×1111161011³ (a number of 28 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (1111161091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555580505 + 555580506.

It is an arithmetic number, because the mean of its divisors is an integer number (555580506).

Almost surely, 2^1111161011 is an apocalyptic number.

1111161011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111161011 is an equidigital number, since it uses as much as digits as its factorization.

1111161011 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.

The square root of 1111161011 is about 33334.0818232631. The cubic root of 1111161011 is about 1035.7596734749.

Adding to 1111161011 its reverse (1101611111), we get a palindrome (2212772122).

The spelling of 1111161011 in words is "one billion, one hundred eleven million, one hundred sixty-one thousand, eleven".