191039412330 has 256 divisors, whose sum is σ = 586668096000. Its totient is φ = 43819315200.

The previous prime is 191039412299. The next prime is 191039412367. The reversal of 191039412330 is 33214930191.

191039412330 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 6010821 + ... + 6042519.

It is an arithmetic number, because the mean of its divisors is an integer number (2291672250).

Almost surely, 2^191039412330 is an apocalyptic number.

191039412330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 191039412330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (293334048000).

191039412330 is an abundant number, since it is smaller than the sum of its proper divisors (395628683670).

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

191039412330 is a wasteful number, since it uses less digits than its factorization.

191039412330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31846 (or 31840 counting only the distinct ones).

The product of its (nonzero) digits is 17496, while the sum is 36.

The spelling of 191039412330 in words is "one hundred ninety-one billion, thirty-nine million, four hundred twelve thousand, three hundred thirty".