11275354861 has 2 divisors, whose sum is σ = 11275354862. Its totient is φ = 11275354860.

The previous prime is 11275354859. The next prime is 11275354891. The reversal of 11275354861 is 16845357211.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 9222721225 + 2052633636 = 96035^2 + 45306^2 .

It is a cyclic number.

It is not a de Polignac number, because 11275354861 - 2¹ = 11275354859 is a prime.

Together with 11275354859, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11275354891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5637677430 + 5637677431.

It is an arithmetic number, because the mean of its divisors is an integer number (5637677431).

Almost surely, 2^11275354861 is an apocalyptic number.

It is an amenable number.

11275354861 is a deficient number, since it is larger than the sum of its proper divisors (1).

11275354861 is an equidigital number, since it uses as much as digits as its factorization.

11275354861 is an evil number, because the sum of its binary digits is even.

The product of its digits is 201600, while the sum is 43.

The spelling of 11275354861 in words is "eleven billion, two hundred seventy-five million, three hundred fifty-four thousand, eight hundred sixty-one".