2203131321012 has 24 divisors (see below), whose sum is σ = 5141228369536. Its totient is φ = 734293018368.

The previous prime is 2203131321011. The next prime is 2203131321043. The reversal of 2203131321012 is 2101231313022.

It is a self number, because there is not a number n which added to its sum of digits gives 2203131321012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2203131321011) 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, 10401868 + ... + 10611555.

Almost surely, 2^{2203131321012} is an apocalyptic number.

It is an amenable number.

2203131321012 is an abundant number, since it is smaller than the sum of its proper divisors (2938097048524).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2203131321012 is a wasteful number, since it uses less digits than its factorization.

2203131321012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21022167 (or 21022165 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 2203131321012 its reverse (2101231313022), we get a palindrome (4304362634034).

The spelling of 2203131321012 in words is "two trillion, two hundred three billion, one hundred thirty-one million, three hundred twenty-one thousand, twelve".