11998102771 has 2 divisors, whose sum is σ = 11998102772. Its totient is φ = 11998102770.

The previous prime is 11998102769. The next prime is 11998102777. The reversal of 11998102771 is 17720189911.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11998102771 - 2¹ = 11998102769 is a prime.

Together with 11998102769, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (11998102777) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5999051385 + 5999051386.

It is an arithmetic number, because the mean of its divisors is an integer number (5999051386).

Almost surely, 2^11998102771 is an apocalyptic number.

11998102771 is a deficient number, since it is larger than the sum of its proper divisors (1).

11998102771 is an equidigital number, since it uses as much as digits as its factorization.

11998102771 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 63504, while the sum is 46.

The spelling of 11998102771 in words is "eleven billion, nine hundred ninety-eight million, one hundred two thousand, seven hundred seventy-one".