10191920191 has 2 divisors, whose sum is σ = 10191920192. Its totient is φ = 10191920190.

The previous prime is 10191920161. The next prime is 10191920197. The reversal of 10191920191 is 19102919101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 10191920191 - 2¹⁵ = 10191887423 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10191920197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5095960095 + 5095960096.

It is an arithmetic number, because the mean of its divisors is an integer number (5095960096).

Almost surely, 2^10191920191 is an apocalyptic number.

10191920191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10191920191 is an equidigital number, since it uses as much as digits as its factorization.

10191920191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1458, while the sum is 34.

The spelling of 10191920191 in words is "ten billion, one hundred ninety-one million, nine hundred twenty thousand, one hundred ninety-one".