1110111889 has 2 divisors, whose sum is σ = 1110111890. Its totient is φ = 1110111888.

The previous prime is 1110111881. The next prime is 1110111911. The reversal of 1110111889 is 9881110111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 901020289 + 209091600 = 30017^2 + 14460^2 .

It is a cyclic number.

It is not a de Polignac number, because 1110111889 - 2³ = 1110111881 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1110111889.

It is not a weakly prime, because it can be changed into another prime (1110111881) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555055944 + 555055945.

It is an arithmetic number, because the mean of its divisors is an integer number (555055945).

Almost surely, 2^1110111889 is an apocalyptic number.

It is an amenable number.

1110111889 is a deficient number, since it is larger than the sum of its proper divisors (1).

1110111889 is an equidigital number, since it uses as much as digits as its factorization.

1110111889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 31.

The square root of 1110111889 is about 33318.3416303993. The cubic root of 1110111889 is about 1035.4335939903.

The spelling of 1110111889 in words is "one billion, one hundred ten million, one hundred eleven thousand, eight hundred eighty-nine".