111100110100549 has 2 divisors, whose sum is σ = 111100110100550. Its totient is φ = 111100110100548.

The previous prime is 111100110100543. The next prime is 111100110100589. The reversal of 111100110100549 is 945001011001111.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 109531085804100 + 1569024296449 = 10465710^2 + 1252607^2 .

It is a cyclic number.

It is not a de Polignac number, because 111100110100549 - 2⁹ = 111100110100037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (111100110100543) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55550055050274 + 55550055050275.

It is an arithmetic number, because the mean of its divisors is an integer number (55550055050275).

Almost surely, 2^{111100110100549} is an apocalyptic number.

It is an amenable number.

111100110100549 is a deficient number, since it is larger than the sum of its proper divisors (1).

111100110100549 is an equidigital number, since it uses as much as digits as its factorization.

111100110100549 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 25.

The spelling of 111100110100549 in words is "one hundred eleven trillion, one hundred billion, one hundred ten million, one hundred thousand, five hundred forty-nine".