2101311002069 has 2 divisors, whose sum is σ = 2101311002070. Its totient is φ = 2101311002068.

The previous prime is 2101311002029. The next prime is 2101311002071. The reversal of 2101311002069 is 9602001131012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2016826022500 + 84484979569 = 1420150^2 + 290663^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2101311002069 is a prime.

It is a super-2 number, since 2×2101311002069² (a number of 25 digits) contains 22 as substring.

Together with 2101311002071, 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 (2101311002009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050655501034 + 1050655501035.

It is an arithmetic number, because the mean of its divisors is an integer number (1050655501035).

Almost surely, 2^{2101311002069} is an apocalyptic number.

It is an amenable number.

2101311002069 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101311002069 is an equidigital number, since it uses as much as digits as its factorization.

2101311002069 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 26.

The spelling of 2101311002069 in words is "two trillion, one hundred one billion, three hundred eleven million, two thousand, sixty-nine".