11311042271 has 2 divisors, whose sum is σ = 11311042272. Its totient is φ = 11311042270.

The previous prime is 11311042229. The next prime is 11311042297. The reversal of 11311042271 is 17224011311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11311042271 - 2²² = 11306847967 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11311042471) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5655521135 + 5655521136.

It is an arithmetic number, because the mean of its divisors is an integer number (5655521136).

Almost surely, 2^11311042271 is an apocalyptic number.

11311042271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11311042271 is an equidigital number, since it uses as much as digits as its factorization.

11311042271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 23.

Adding to 11311042271 its reverse (17224011311), we get a palindrome (28535053582).

The spelling of 11311042271 in words is "eleven billion, three hundred eleven million, forty-two thousand, two hundred seventy-one".