10111109989 has 2 divisors, whose sum is σ = 10111109990. Its totient is φ = 10111109988.

The previous prime is 10111109969. The next prime is 10111110001. The reversal of 10111109989 is 98990111101.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9914184900 + 196925089 = 99570^2 + 14033^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111109989 - 2²³ = 10102721381 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10111109909) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055554994 + 5055554995.

It is an arithmetic number, because the mean of its divisors is an integer number (5055554995).

Almost surely, 2^10111109989 is an apocalyptic number.

It is an amenable number.

10111109989 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111109989 is an equidigital number, since it uses as much as digits as its factorization.

10111109989 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 5832, while the sum is 40.

The spelling of 10111109989 in words is "ten billion, one hundred eleven million, one hundred nine thousand, nine hundred eighty-nine".