91010320111 has 8 divisors (see below), whose sum is σ = 91352268000. Its totient is φ = 90668585952.

The previous prime is 91010320109. The next prime is 91010320133. The reversal of 91010320111 is 11102301019.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 91010320111 - 2¹ = 91010320109 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (91010321111) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 826921 + ... + 930493.

It is an arithmetic number, because the mean of its divisors is an integer number (11419033500).

Almost surely, 2^91010320111 is an apocalyptic number.

91010320111 is a deficient number, since it is larger than the sum of its proper divisors (341947889).

91010320111 is a wasteful number, since it uses less digits than its factorization.

91010320111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106865.

The product of its (nonzero) digits is 54, while the sum is 19.

The spelling of 91010320111 in words is "ninety-one billion, ten million, three hundred twenty thousand, one hundred eleven".