12131203201 has 12 divisors (see below), whose sum is σ = 13788165972. Its totient is φ = 10608659424.

The previous prime is 12131203193. The next prime is 12131203211. The reversal of 12131203201 is 10230213121.

It can be written as a sum of positive squares in 2 ways, for example, as 890962801 + 11240240400 = 29849^2 + 106020^2 .

It is not a de Polignac number, because 12131203201 - 2³ = 12131203193 is a prime.

It is a super-2 number, since 2×12131203201² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12131203211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1287786 + ... + 1297171.

It is an arithmetic number, because the mean of its divisors is an integer number (1149013831).

Almost surely, 2^12131203201 is an apocalyptic number.

It is an amenable number.

12131203201 is a deficient number, since it is larger than the sum of its proper divisors (1656962771).

12131203201 is a wasteful number, since it uses less digits than its factorization.

12131203201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2585008 (or 2584989 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12131203201 its reverse (10230213121), we get a palindrome (22361416322).

The spelling of 12131203201 in words is "twelve billion, one hundred thirty-one million, two hundred three thousand, two hundred one".