1110111021589 has 2 divisors, whose sum is σ = 1110111021590. Its totient is φ = 1110111021588.

The previous prime is 1110111021583. The next prime is 1110111021631. The reversal of 1110111021589 is 9851201110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 965536168689 + 144574852900 = 982617^2 + 380230^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110111021589 - 2³ = 1110111021581 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1110111021589.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1110111021581) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055510794 + 555055510795.

It is an arithmetic number, because the mean of its divisors is an integer number (555055510795).

Almost surely, 2^{1110111021589} is an apocalyptic number.

It is an amenable number.

1110111021589 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111021589 is an equidigital number, since it uses as much as digits as its factorization.

1110111021589 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 720, while the sum is 31.

The spelling of 1110111021589 in words is "one trillion, one hundred ten billion, one hundred eleven million, twenty-one thousand, five hundred eighty-nine".