12131032223 has 4 divisors (see below), whose sum is σ = 12181789920. Its totient is φ = 12080274528.

The previous prime is 12131032213. The next prime is 12131032229. The reversal of 12131032223 is 32223013121.

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 12131032223 - 2¹² = 12131028127 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12131032195 and 12131032204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131032229) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25378490 + ... + 25378967.

It is an arithmetic number, because the mean of its divisors is an integer number (3045447480).

Almost surely, 2^12131032223 is an apocalyptic number.

12131032223 is a deficient number, since it is larger than the sum of its proper divisors (50757697).

12131032223 is an equidigital number, since it uses as much as digits as its factorization.

12131032223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50757696.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 12131032223 its reverse (32223013121), we get a palindrome (44354045344).

The spelling of 12131032223 in words is "twelve billion, one hundred thirty-one million, thirty-two thousand, two hundred twenty-three".