91083303091 has 6 divisors (see below), whose sum is σ = 100116358076. Its totient is φ = 82803002700.

The previous prime is 91083303071. The next prime is 91083303209. The reversal of 91083303091 is 19030338019.

It is not a de Polignac number, because 91083303091 - 2¹⁹ = 91082778803 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 91083303091.

It is not an unprimeable number, because it can be changed into a prime (91083303071) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 376377165 + ... + 376377406.

Almost surely, 2^91083303091 is an apocalyptic number.

91083303091 is a deficient number, since it is larger than the sum of its proper divisors (9033054985).

91083303091 is a wasteful number, since it uses less digits than its factorization.

91083303091 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752754593 (or 752754582 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 37.

The spelling of 91083303091 in words is "ninety-one billion, eighty-three million, three hundred three thousand, ninety-one".