12305550191 has 16 divisors (see below), whose sum is σ = 13667021088. Its totient is φ = 10985155200.

The previous prime is 12305550163. The next prime is 12305550197. The reversal of 12305550191 is 19105550321.

It is a cyclic number.

It is not a de Polignac number, because 12305550191 - 2¹⁰ = 12305549167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12305550197) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 396365 + ... + 426281.

It is an arithmetic number, because the mean of its divisors is an integer number (854188818).

Almost surely, 2^12305550191 is an apocalyptic number.

12305550191 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12305550191 is a deficient number, since it is larger than the sum of its proper divisors (1361470897).

12305550191 is a wasteful number, since it uses less digits than its factorization.

12305550191 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30602.

The product of its (nonzero) digits is 6750, while the sum is 32.

The spelling of 12305550191 in words is "twelve billion, three hundred five million, five hundred fifty thousand, one hundred ninety-one".