91120003 has 4 divisors (see below), whose sum is σ = 98129248. Its totient is φ = 84110760.

The previous prime is 91119979. The next prime is 91120027. The reversal of 91120003 is 30002119.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (91119979) and next prime (91120027).

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-91120003 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91120103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3504603 + ... + 3504628.

It is an arithmetic number, because the mean of its divisors is an integer number (24532312).

Almost surely, 2^91120003 is an apocalyptic number.

91120003 is a deficient number, since it is larger than the sum of its proper divisors (7009245).

91120003 is a wasteful number, since it uses less digits than its factorization.

91120003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7009244.

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 91120003 is about 9545.6798081645. The cubic root of 91120003 is about 449.9917743352.

The spelling of 91120003 in words is "ninety-one million, one hundred twenty thousand, three".