91119703731121 has 8 divisors (see below), whose sum is σ = 101512667287080. Its totient is φ = 81210133828992.

The previous prime is 91119703731083. The next prime is 91119703731139. The reversal of 91119703731121 is 12113730791119.

It can be written as a sum of positive squares in 4 ways, for example, as 40929740721 + 91078773990400 = 202311^2 + 9543520^2 .

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 91119703731121 - 2⁹ = 91119703730609 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (91119703738121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 120848413060 + ... + 120848413813.

It is an arithmetic number, because the mean of its divisors is an integer number (12689083410885).

Almost surely, 2^{91119703731121} is an apocalyptic number.

It is an amenable number.

91119703731121 is a deficient number, since it is larger than the sum of its proper divisors (10392963555959).

91119703731121 is a wasteful number, since it uses less digits than its factorization.

91119703731121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 241696826915.

The product of its (nonzero) digits is 71442, while the sum is 46.

The spelling of 91119703731121 in words is "ninety-one trillion, one hundred nineteen billion, seven hundred three million, seven hundred thirty-one thousand, one hundred twenty-one".