12197324923 has 4 divisors (see below), whose sum is σ = 13939799920. Its totient is φ = 10454849928.

The previous prime is 12197324863. The next prime is 12197324929. The reversal of 12197324923 is 32942379121.

12197324923 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12197324923 - 2⁹ = 12197324411 is a prime.

It is the 110442-nd Hogben number.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12197324923.

It is not an unprimeable number, because it can be changed into a prime (12197324929) by changing a digit.

It is a nontrivial repunit in base 110441.

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 3 ways as a sum of consecutive naturals, for example, 871237488 + ... + 871237501.

It is an arithmetic number, because the mean of its divisors is an integer number (3484949980).

Almost surely, 2^12197324923 is an apocalyptic number.

12197324923 is a deficient number, since it is larger than the sum of its proper divisors (1742474997).

12197324923 is an equidigital number, since it uses as much as digits as its factorization.

12197324923 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1742474996.

The product of its digits is 163296, while the sum is 43.

The spelling of 12197324923 in words is "twelve billion, one hundred ninety-seven million, three hundred twenty-four thousand, nine hundred twenty-three".