12003211031 has 16 divisors (see below), whose sum is σ = 14444640000. Its totient is φ = 9743804928.

The previous prime is 12003211027. The next prime is 12003211057. The reversal of 12003211031 is 13011230021.

It is a cyclic number.

It is not a de Polignac number, because 12003211031 - 2² = 12003211027 is a prime.

It is a super-2 number, since 2×12003211031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12003210997 and 12003211015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003214031) 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, 452471 + ... + 478263.

It is an arithmetic number, because the mean of its divisors is an integer number (902790000).

Almost surely, 2^12003211031 is an apocalyptic number.

12003211031 is a deficient number, since it is larger than the sum of its proper divisors (2441428969).

12003211031 is a wasteful number, since it uses less digits than its factorization.

12003211031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29318.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12003211031 its reverse (13011230021), we get a palindrome (25014441052).

The spelling of 12003211031 in words is "twelve billion, three million, two hundred eleven thousand, thirty-one".