111123133061 has 2 divisors, whose sum is σ = 111123133062. Its totient is φ = 111123133060.

The previous prime is 111123133057. The next prime is 111123133063. The reversal of 111123133061 is 160331321111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109375056961 + 1748076100 = 330719^2 + 41810^2 .

It is a cyclic number.

It is not a de Polignac number, because 111123133061 - 2² = 111123133057 is a prime.

It is a super-2 number, since 2×111123133061² (a number of 23 digits) contains 22 as substring.

Together with 111123133063, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111123133063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55561566530 + 55561566531.

It is an arithmetic number, because the mean of its divisors is an integer number (55561566531).

Almost surely, 2^111123133061 is an apocalyptic number.

It is an amenable number.

111123133061 is a deficient number, since it is larger than the sum of its proper divisors (1).

111123133061 is an equidigital number, since it uses as much as digits as its factorization.

111123133061 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 111123133061 its reverse (160331321111), we get a palindrome (271454454172).

The spelling of 111123133061 in words is "one hundred eleven billion, one hundred twenty-three million, one hundred thirty-three thousand, sixty-one".