91351941121 has 48 divisors (see below), whose sum is σ = 114366726144. Its totient is φ = 72574530336.

The previous prime is 91351941103. The next prime is 91351941169. The reversal of 91351941121 is 12114915319.

It is not a de Polignac number, because 91351941121 - 2⁹ = 91351940609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91351941221) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (7) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 6147126 + ... + 6161968.

It is an arithmetic number, because the mean of its divisors is an integer number (2382640128).

It is a Proth number, since it is equal to 5445 ⋅ 2²⁴ + 1 and 5445 < 2²⁴.

Almost surely, 2^91351941121 is an apocalyptic number.

It is an amenable number.

91351941121 is a deficient number, since it is larger than the sum of its proper divisors (23014785023).

91351941121 is a wasteful number, since it uses less digits than its factorization.

91351941121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15050 (or 15043 counting only the distinct ones).

The product of its digits is 9720, while the sum is 37.

The spelling of 91351941121 in words is "ninety-one billion, three hundred fifty-one million, nine hundred forty-one thousand, one hundred twenty-one".