12231186398 has 4 divisors (see below), whose sum is σ = 18346779600. Its totient is φ = 6115593198.

The previous prime is 12231186397. The next prime is 12231186437. The reversal of 12231186398 is 89368113221.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231186397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3057796598 + ... + 3057796601.

It is an arithmetic number, because the mean of its divisors is an integer number (4586694900).

Almost surely, 2^12231186398 is an apocalyptic number.

12231186398 is a deficient number, since it is larger than the sum of its proper divisors (6115593202).

12231186398 is an equidigital number, since it uses as much as digits as its factorization.

12231186398 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6115593201.

The product of its digits is 124416, while the sum is 44.

The spelling of 12231186398 in words is "twelve billion, two hundred thirty-one million, one hundred eighty-six thousand, three hundred ninety-eight".