12031331203 has 4 divisors (see below), whose sum is σ = 12031814200. Its totient is φ = 12030848208.

The previous prime is 12031331173. The next prime is 12031331209. The reversal of 12031331203 is 30213313021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30213313021 = 1291 ⋅23403031.

It is a cyclic number.

It is not a de Polignac number, because 12031331203 - 2¹⁷ = 12031200131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031331209) 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, 201978 + ... + 254671.

It is an arithmetic number, because the mean of its divisors is an integer number (3007953550).

Almost surely, 2^12031331203 is an apocalyptic number.

12031331203 is a deficient number, since it is larger than the sum of its proper divisors (482997).

12031331203 is an equidigital number, since it uses as much as digits as its factorization.

12031331203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 482996.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12031331203 its reverse (30213313021), we get a palindrome (42244644224).

The spelling of 12031331203 in words is "twelve billion, thirty-one million, three hundred thirty-one thousand, two hundred three".