10188918191 has 2 divisors, whose sum is σ = 10188918192. Its totient is φ = 10188918190.

The previous prime is 10188918137. The next prime is 10188918197. The reversal of 10188918191 is 19181988101.

It is a strong prime.

It is an emirp because it is prime and its reverse (19181988101) is a distict prime. It is also a bemirp because it and its reverse can be mirrored producing other two distinct primes, 16181688101 and 10188618161.

It is a cyclic number.

It is not a de Polignac number, because 10188918191 - 2⁶ = 10188918127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (10188918197) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5094459095 + 5094459096.

It is an arithmetic number, because the mean of its divisors is an integer number (5094459096).

Almost surely, 2^10188918191 is an apocalyptic number.

10188918191 is a deficient number, since it is larger than the sum of its proper divisors (1).

10188918191 is an equidigital number, since it uses as much as digits as its factorization.

10188918191 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 41472, while the sum is 47.

The spelling of 10188918191 in words is "ten billion, one hundred eighty-eight million, nine hundred eighteen thousand, one hundred ninety-one".