10012111110191 has 2 divisors, whose sum is σ = 10012111110192. Its totient is φ = 10012111110190.

The previous prime is 10012111110091. The next prime is 10012111110257. The reversal of 10012111110191 is 19101111121001.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10012111110191 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10012111110091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5006055555095 + 5006055555096.

It is an arithmetic number, because the mean of its divisors is an integer number (5006055555096).

Almost surely, 2^{10012111110191} is an apocalyptic number.

10012111110191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10012111110191 is an equidigital number, since it uses as much as digits as its factorization.

10012111110191 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 20.

Adding to 10012111110191 its reverse (19101111121001), we get a palindrome (29113222231192).

The spelling of 10012111110191 in words is "ten trillion, twelve billion, one hundred eleven million, one hundred ten thousand, one hundred ninety-one".