1010000100191 has 2 divisors, whose sum is σ = 1010000100192. Its totient is φ = 1010000100190.

The previous prime is 1010000100167. The next prime is 1010000100269. The reversal of 1010000100191 is 1910010000101.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1010000100191 - 2¹⁰ = 1010000099167 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1010000100101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505000050095 + 505000050096.

It is an arithmetic number, because the mean of its divisors is an integer number (505000050096).

Almost surely, 2^{1010000100191} is an apocalyptic number.

1010000100191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1010000100191 is an equidigital number, since it uses as much as digits as its factorization.

1010000100191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 9, while the sum is 14.

Adding to 1010000100191 its reverse (1910010000101), we get a palindrome (2920010100292).

The spelling of 1010000100191 in words is "one trillion, ten billion, one hundred thousand, one hundred ninety-one".