11855117411 has 2 divisors, whose sum is σ = 11855117412. Its totient is φ = 11855117410.

The previous prime is 11855117377. The next prime is 11855117419. The reversal of 11855117411 is 11471155811.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11855117411 - 2¹⁸ = 11854855267 is a prime.

It is not a weakly prime, because it can be changed into another prime (11855117419) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5927558705 + 5927558706.

It is an arithmetic number, because the mean of its divisors is an integer number (5927558706).

Almost surely, 2^11855117411 is an apocalyptic number.

11855117411 is a deficient number, since it is larger than the sum of its proper divisors (1).

11855117411 is an equidigital number, since it uses as much as digits as its factorization.

11855117411 is an evil number, because the sum of its binary digits is even.

The product of its digits is 5600, while the sum is 35.

The spelling of 11855117411 in words is "eleven billion, eight hundred fifty-five million, one hundred seventeen thousand, four hundred eleven".