111287860049 has 2 divisors, whose sum is σ = 111287860050. Its totient is φ = 111287860048.

The previous prime is 111287860027. The next prime is 111287860063. The reversal of 111287860049 is 940068782111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84643174225 + 26644685824 = 290935^2 + 163232^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-111287860049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 111287859985 and 111287860012.

It is not a weakly prime, because it can be changed into another prime (111287866049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55643930024 + 55643930025.

It is an arithmetic number, because the mean of its divisors is an integer number (55643930025).

Almost surely, 2^111287860049 is an apocalyptic number.

It is an amenable number.

111287860049 is a deficient number, since it is larger than the sum of its proper divisors (1).

111287860049 is an equidigital number, since it uses as much as digits as its factorization.

111287860049 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 193536, while the sum is 47.

The spelling of 111287860049 in words is "one hundred eleven billion, two hundred eighty-seven million, eight hundred sixty thousand, forty-nine".