191308913012 has 12 divisors (see below), whose sum is σ = 382617826080. Its totient is φ = 81989534136.

The previous prime is 191308912979. The next prime is 191308913023. The reversal of 191308913012 is 210319803191.

191308913012 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

191308913012 is an admirable number.

It is a congruent 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 3 ways as a sum of consecutive naturals, for example, 3416230562 + ... + 3416230617.

It is an arithmetic number, because the mean of its divisors is an integer number (31884818840).

Almost surely, 2^191308913012 is an apocalyptic number.

It is an amenable number.

191308913012 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

191308913012 is a wasteful number, since it uses less digits than its factorization.

191308913012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6832461190 (or 6832461188 counting only the distinct ones).

The product of its (nonzero) digits is 11664, while the sum is 38.

The spelling of 191308913012 in words is "one hundred ninety-one billion, three hundred eight million, nine hundred thirteen thousand, twelve".