211232100130991 has 2 divisors, whose sum is σ = 211232100130992. Its totient is φ = 211232100130990.

The previous prime is 211232100130981. The next prime is 211232100130999. The reversal of 211232100130991 is 199031001232112.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 211232100130991 - 2⁴² = 206834053619887 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211232100130999) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105616050065495 + 105616050065496.

It is an arithmetic number, because the mean of its divisors is an integer number (105616050065496).

Almost surely, 2^{211232100130991} is an apocalyptic number.

211232100130991 is a deficient number, since it is larger than the sum of its proper divisors (1).

211232100130991 is an equidigital number, since it uses as much as digits as its factorization.

211232100130991 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5832, while the sum is 35.

The spelling of 211232100130991 in words is "two hundred eleven trillion, two hundred thirty-two billion, one hundred million, one hundred thirty thousand, nine hundred ninety-one".