11891881080353 has 2 divisors, whose sum is σ = 11891881080354. Its totient is φ = 11891881080352.

The previous prime is 11891881080329. The next prime is 11891881080397. The reversal of 11891881080353 is 35308018819811.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8682881768929 + 3208999311424 = 2946673^2 + 1791368^2 .

It is a cyclic number.

It is not a de Polignac number, because 11891881080353 - 2⁸ = 11891881080097 is a prime.

It is not a weakly prime, because it can be changed into another prime (11891881080253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5945940540176 + 5945940540177.

It is an arithmetic number, because the mean of its divisors is an integer number (5945940540177).

Almost surely, 2^{11891881080353} is an apocalyptic number.

It is an amenable number.

11891881080353 is a deficient number, since it is larger than the sum of its proper divisors (1).

11891881080353 is an equidigital number, since it uses as much as digits as its factorization.

11891881080353 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1658880, while the sum is 56.

The spelling of 11891881080353 in words is "eleven trillion, eight hundred ninety-one billion, eight hundred eighty-one million, eighty thousand, three hundred fifty-three".