2101135889 has 2 divisors, whose sum is σ = 2101135890. Its totient is φ = 2101135888.

The previous prime is 2101135877. The next prime is 2101135891. The reversal of 2101135889 is 9885311012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1986217489 + 114918400 = 44567^2 + 10720^2 .

It is a cyclic number.

It is not a de Polignac number, because 2101135889 - 2⁸ = 2101135633 is a prime.

Together with 2101135891, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (2101135849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050567944 + 1050567945.

It is an arithmetic number, because the mean of its divisors is an integer number (1050567945).

Almost surely, 2^2101135889 is an apocalyptic number.

It is an amenable number.

2101135889 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101135889 is an equidigital number, since it uses as much as digits as its factorization.

2101135889 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17280, while the sum is 38.

The square root of 2101135889 is about 45838.1488391493. The cubic root of 2101135889 is about 1280.8100115911.

The spelling of 2101135889 in words is "two billion, one hundred one million, one hundred thirty-five thousand, eight hundred eighty-nine".