1331210210191 has 2 divisors, whose sum is σ = 1331210210192. Its totient is φ = 1331210210190.

The previous prime is 1331210210129. The next prime is 1331210210227. The reversal of 1331210210191 is 1910120121331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331210210191 - 2²⁵ = 1331176655759 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1331210210591) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665605105095 + 665605105096.

It is an arithmetic number, because the mean of its divisors is an integer number (665605105096).

Almost surely, 2^{1331210210191} is an apocalyptic number.

1331210210191 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331210210191 is an equidigital number, since it uses as much as digits as its factorization.

1331210210191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 25.

The spelling of 1331210210191 in words is "one trillion, three hundred thirty-one billion, two hundred ten million, two hundred ten thousand, one hundred ninety-one".