20111101010207 has 2 divisors, whose sum is σ = 20111101010208. Its totient is φ = 20111101010206.

The previous prime is 20111101010197. The next prime is 20111101010227. The reversal of 20111101010207 is 70201010111102.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20111101010207 - 2⁴ = 20111101010191 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20111101010227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10055550505103 + 10055550505104.

It is an arithmetic number, because the mean of its divisors is an integer number (10055550505104).

Almost surely, 2^{20111101010207} is an apocalyptic number.

20111101010207 is a deficient number, since it is larger than the sum of its proper divisors (1).

20111101010207 is an equidigital number, since it uses as much as digits as its factorization.

20111101010207 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 28, while the sum is 17.

Adding to 20111101010207 its reverse (70201010111102), we get a palindrome (90312111121309).

The spelling of 20111101010207 in words is "twenty trillion, one hundred eleven billion, one hundred one million, ten thousand, two hundred seven".