12003211131 has 16 divisors (see below), whose sum is σ = 16949597184. Its totient is φ = 7529698944.

The previous prime is 12003211111. The next prime is 12003211139. The reversal of 12003211131 is 13111230021.

It is a happy number.

It is not a de Polignac number, because 12003211131 - 2²⁷ = 11868993403 is a prime.

It is a super-2 number, since 2×12003211131² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12003211131.

It is not an unprimeable number, because it can be changed into a prime (12003211139) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 219330 + ... + 268536.

It is an arithmetic number, because the mean of its divisors is an integer number (1059349824).

Almost surely, 2^12003211131 is an apocalyptic number.

12003211131 is a deficient number, since it is larger than the sum of its proper divisors (4946386053).

12003211131 is a wasteful number, since it uses less digits than its factorization.

12003211131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54010.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12003211131 its reverse (13111230021), we get a palindrome (25114441152).

The spelling of 12003211131 in words is "twelve billion, three million, two hundred eleven thousand, one hundred thirty-one".