201111859859 has 2 divisors, whose sum is σ = 201111859860. Its totient is φ = 201111859858.

The previous prime is 201111859843. The next prime is 201111859867. The reversal of 201111859859 is 958958111102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201111859859 - 2⁴ = 201111859843 is a prime.

It is not a weakly prime, because it can be changed into another prime (201111459859) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100555929929 + 100555929930.

It is an arithmetic number, because the mean of its divisors is an integer number (100555929930).

Almost surely, 2^201111859859 is an apocalyptic number.

201111859859 is a deficient number, since it is larger than the sum of its proper divisors (1).

201111859859 is an equidigital number, since it uses as much as digits as its factorization.

201111859859 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 50.

The spelling of 201111859859 in words is "two hundred one billion, one hundred eleven million, eight hundred fifty-nine thousand, eight hundred fifty-nine".