2101135847 has 2 divisors, whose sum is σ = 2101135848. Its totient is φ = 2101135846.

The previous prime is 2101135793. The next prime is 2101135849. The reversal of 2101135847 is 7485311012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101135847 - 2⁶ = 2101135783 is a prime.

Together with 2101135849, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

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, 1050567923 + 1050567924.

It is an arithmetic number, because the mean of its divisors is an integer number (1050567924).

Almost surely, 2^2101135847 is an apocalyptic number.

2101135847 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101135847 is an equidigital number, since it uses as much as digits as its factorization.

2101135847 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6720, while the sum is 32.

The square root of 2101135847 is about 45838.1483810156. The cubic root of 2101135847 is about 1280.8100030570.

Adding to 2101135847 its reverse (7485311012), we get a palindrome (9586446859).

The spelling of 2101135847 in words is "two billion, one hundred one million, one hundred thirty-five thousand, eight hundred forty-seven".