10111110011209 has 2 divisors, whose sum is σ = 10111110011210. Its totient is φ = 10111110011208.

The previous prime is 10111110011207. The next prime is 10111110011281. The reversal of 10111110011209 is 90211001111101.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 5979761076025 + 4131348935184 = 2445355^2 + 2032572^2 .

It is a cyclic number.

It is not a de Polignac number, because 10111110011209 - 2¹ = 10111110011207 is a prime.

Together with 10111110011207, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (10111110011207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5055555005604 + 5055555005605.

It is an arithmetic number, because the mean of its divisors is an integer number (5055555005605).

Almost surely, 2^{10111110011209} is an apocalyptic number.

It is an amenable number.

10111110011209 is a deficient number, since it is larger than the sum of its proper divisors (1).

10111110011209 is an equidigital number, since it uses as much as digits as its factorization.

10111110011209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 19.

The spelling of 10111110011209 in words is "ten trillion, one hundred eleven billion, one hundred ten million, eleven thousand, two hundred nine".