11520961171 has 2 divisors, whose sum is σ = 11520961172. Its totient is φ = 11520961170.

The previous prime is 11520961121. The next prime is 11520961181. The reversal of 11520961171 is 17116902511.

It is a strong prime.

It is an emirp because it is prime and its reverse (17116902511) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11520961171 - 2¹³ = 11520952979 is a prime.

It is not a weakly prime, because it can be changed into another prime (11520961121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5760480585 + 5760480586.

It is an arithmetic number, because the mean of its divisors is an integer number (5760480586).

Almost surely, 2^11520961171 is an apocalyptic number.

11520961171 is a deficient number, since it is larger than the sum of its proper divisors (1).

11520961171 is an equidigital number, since it uses as much as digits as its factorization.

11520961171 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3780, while the sum is 34.

The spelling of 11520961171 in words is "eleven billion, five hundred twenty million, nine hundred sixty-one thousand, one hundred seventy-one".