91010601191 has 2 divisors, whose sum is σ = 91010601192. Its totient is φ = 91010601190.

The previous prime is 91010601173. The next prime is 91010601193. The reversal of 91010601191 is 19110601019.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91010601191 is a prime.

Together with 91010601193, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (91010601193) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 45505300595 + 45505300596.

It is an arithmetic number, because the mean of its divisors is an integer number (45505300596).

Almost surely, 2^91010601191 is an apocalyptic number.

91010601191 is a deficient number, since it is larger than the sum of its proper divisors (1).

91010601191 is an equidigital number, since it uses as much as digits as its factorization.

91010601191 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 29.

The spelling of 91010601191 in words is "ninety-one billion, ten million, six hundred one thousand, one hundred ninety-one".