12231452231 has 8 divisors (see below), whose sum is σ = 12260031360. Its totient is φ = 12202896888.

The previous prime is 12231452227. The next prime is 12231452237. The reversal of 12231452231 is 13225413221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12231452231 - 2² = 12231452227 is a prime.

It is a super-2 number, since 2×12231452231² (a number of 21 digits) contains 22 as substring.

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 12231452231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12231452237) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1384430 + ... + 1393236.

It is an arithmetic number, because the mean of its divisors is an integer number (1532503920).

Almost surely, 2^12231452231 is an apocalyptic number.

12231452231 is a deficient number, since it is larger than the sum of its proper divisors (28579129).

12231452231 is an equidigital number, since it uses as much as digits as its factorization.

12231452231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11893.

The product of its digits is 2880, while the sum is 26.

Adding to 12231452231 its reverse (13225413221), we get a palindrome (25456865452).

The spelling of 12231452231 in words is "twelve billion, two hundred thirty-one million, four hundred fifty-two thousand, two hundred thirty-one".