2102132191 has 2 divisors, whose sum is σ = 2102132192. Its totient is φ = 2102132190.

The previous prime is 2102132183. The next prime is 2102132209. The reversal of 2102132191 is 1912312012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2102132191 - 2³ = 2102132183 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2102132491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051066095 + 1051066096.

It is an arithmetic number, because the mean of its divisors is an integer number (1051066096).

Almost surely, 2^2102132191 is an apocalyptic number.

2102132191 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102132191 is an equidigital number, since it uses as much as digits as its factorization.

2102132191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 22.

The square root of 2102132191 is about 45849.0151584524. The cubic root of 2102132191 is about 1281.0124214626.

The spelling of 2102132191 in words is "two billion, one hundred two million, one hundred thirty-two thousand, one hundred ninety-one".