111323311061 has 2 divisors, whose sum is σ = 111323311062. Its totient is φ = 111323311060.

The previous prime is 111323311049. The next prime is 111323311067. The reversal of 111323311061 is 160113323111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 65941104100 + 45382206961 = 256790^2 + 213031^2 .

It is a cyclic number.

It is not a de Polignac number, because 111323311061 - 2⁶ = 111323310997 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111323311067) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55661655530 + 55661655531.

It is an arithmetic number, because the mean of its divisors is an integer number (55661655531).

Almost surely, 2^111323311061 is an apocalyptic number.

It is an amenable number.

111323311061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111323311061 is an equidigital number, since it uses as much as digits as its factorization.

111323311061 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 23.

Adding to 111323311061 its reverse (160113323111), we get a palindrome (271436634172).

The spelling of 111323311061 in words is "one hundred eleven billion, three hundred twenty-three million, three hundred eleven thousand, sixty-one".