111200131249 has 2 divisors, whose sum is σ = 111200131250. Its totient is φ = 111200131248.

The previous prime is 111200131193. The next prime is 111200131271. The reversal of 111200131249 is 942131002111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 71665967025 + 39534164224 = 267705^2 + 198832^2 .

It is a cyclic number.

It is not a de Polignac number, because 111200131249 - 2¹⁹ = 111199606961 is a prime.

It is not a weakly prime, because it can be changed into another prime (111200131849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55600065624 + 55600065625.

It is an arithmetic number, because the mean of its divisors is an integer number (55600065625).

Almost surely, 2^111200131249 is an apocalyptic number.

It is an amenable number.

111200131249 is a deficient number, since it is larger than the sum of its proper divisors (1).

111200131249 is an equidigital number, since it uses as much as digits as its factorization.

111200131249 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 25.

The spelling of 111200131249 in words is "one hundred eleven billion, two hundred million, one hundred thirty-one thousand, two hundred forty-nine".