12002203231 has 4 divisors (see below), whose sum is σ = 12005016352. Its totient is φ = 11999390112.

The previous prime is 12002203223. The next prime is 12002203247. The reversal of 12002203231 is 13230220021.

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 12002203231 - 2³ = 12002203223 is a prime.

It is a super-2 number, since 2×12002203231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12002203211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1400151 + ... + 1408696.

It is an arithmetic number, because the mean of its divisors is an integer number (3001254088).

Almost surely, 2^12002203231 is an apocalyptic number.

12002203231 is a deficient number, since it is larger than the sum of its proper divisors (2813121).

12002203231 is an equidigital number, since it uses as much as digits as its factorization.

12002203231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2813120.

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 12002203231 its reverse (13230220021), we get a palindrome (25232423252).

The spelling of 12002203231 in words is "twelve billion, two million, two hundred three thousand, two hundred thirty-one".