1111105208201 has 2 divisors, whose sum is σ = 1111105208202. Its totient is φ = 1111105208200.

The previous prime is 1111105208131. The next prime is 1111105208251. The reversal of 1111105208201 is 1028025011111.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1106525167225 + 4580040976 = 1051915^2 + 67676^2 .

It is a cyclic number.

It is not a de Polignac number, because 1111105208201 - 2³⁰ = 1110031466377 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (1111105208251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555552604100 + 555552604101.

It is an arithmetic number, because the mean of its divisors is an integer number (555552604101).

Almost surely, 2^{1111105208201} is an apocalyptic number.

It is an amenable number.

1111105208201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111105208201 is an equidigital number, since it uses as much as digits as its factorization.

1111105208201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 160, while the sum is 23.

The spelling of 1111105208201 in words is "one trillion, one hundred eleven billion, one hundred five million, two hundred eight thousand, two hundred one".