11511015071 has 2 divisors, whose sum is σ = 11511015072. Its totient is φ = 11511015070.

The previous prime is 11511015059. The next prime is 11511015073. The reversal of 11511015071 is 17051011511.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11511015071 - 2¹⁴ = 11510998687 is a prime.

Together with 11511015073, 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 (11511015073) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5755507535 + 5755507536.

It is an arithmetic number, because the mean of its divisors is an integer number (5755507536).

Almost surely, 2^11511015071 is an apocalyptic number.

11511015071 is a deficient number, since it is larger than the sum of its proper divisors (1).

11511015071 is an equidigital number, since it uses as much as digits as its factorization.

11511015071 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 175, while the sum is 23.

Adding to 11511015071 its reverse (17051011511), we get a palindrome (28562026582).

The spelling of 11511015071 in words is "eleven billion, five hundred eleven million, fifteen thousand, seventy-one".