12197286243 has 24 divisors (see below), whose sum is σ = 17810509808. Its totient is φ = 8042913792.

The previous prime is 12197286209. The next prime is 12197286247. The reversal of 12197286243 is 34268279121.

12197286243 is a `hidden beast` number, since 1 + 2 + 19 + 7 + 2 + 8 + 624 + 3 = 666.

12197286243 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12197286243 - 2¹⁷ = 12197155171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12197286247) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2045955 + ... + 2051907.

Almost surely, 2^12197286243 is an apocalyptic number.

12197286243 is a deficient number, since it is larger than the sum of its proper divisors (5613223565).

12197286243 is a wasteful number, since it uses less digits than its factorization.

12197286243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8403 (or 8400 counting only the distinct ones).

The product of its digits is 290304, while the sum is 45.

The spelling of 12197286243 in words is "twelve billion, one hundred ninety-seven million, two hundred eighty-six thousand, two hundred forty-three".