111105110489 has 2 divisors, whose sum is σ = 111105110490. Its totient is φ = 111105110488.

The previous prime is 111105110453. The next prime is 111105110509. The reversal of 111105110489 is 984011501111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 100827206089 + 10277904400 = 317533^2 + 101380^2 .

It is a cyclic number.

It is not a de Polignac number, because 111105110489 - 2¹² = 111105106393 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (111105115489) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55552555244 + 55552555245.

It is an arithmetic number, because the mean of its divisors is an integer number (55552555245).

Almost surely, 2^111105110489 is an apocalyptic number.

It is an amenable number.

111105110489 is a deficient number, since it is larger than the sum of its proper divisors (1).

111105110489 is an equidigital number, since it uses as much as digits as its factorization.

111105110489 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 32.

The spelling of 111105110489 in words is "one hundred eleven billion, one hundred five million, one hundred ten thousand, four hundred eighty-nine".