91119703731120 has 960 divisors, whose sum is σ = 325298264578560. Its totient is φ = 22831762636800.

The previous prime is 91119703731083. The next prime is 91119703731139. The reversal of 91119703731120 is 2113730791119.

91119703731120 is a `hidden beast` number, since 91 + 1 + 1 + 9 + 70 + 373 + 1 + 120 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is an unprimeable number.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 22371641404 + ... + 22371645476.

It is an arithmetic number, because the mean of its divisors is an integer number (338852358936).

Almost surely, 2^{91119703731120} is an apocalyptic number.

91119703731120 is a gapful number since it is divisible by the number (90) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 91119703731120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162649132289280).

91119703731120 is an abundant number, since it is smaller than the sum of its proper divisors (234178560847440).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

91119703731120 is a wasteful number, since it uses less digits than its factorization.

91119703731120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4446 (or 4437 counting only the distinct ones).

The product of its (nonzero) digits is 71442, while the sum is 45.

The spelling of 91119703731120 in words is "ninety-one trillion, one hundred nineteen billion, seven hundred three million, seven hundred thirty-one thousand, one hundred twenty".