12002111131 has 16 divisors (see below), whose sum is σ = 12308487840. Its totient is φ = 11698951680.

The previous prime is 12002111123. The next prime is 12002111161. The reversal of 12002111131 is 13111120021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12002111131 - 2³ = 12002111123 is a prime.

It is a super-2 number, since 2×12002111131² (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 (12002111161) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7190365 + ... + 7192033.

It is an arithmetic number, because the mean of its divisors is an integer number (769280490).

Almost surely, 2^12002111131 is an apocalyptic number.

12002111131 is a deficient number, since it is larger than the sum of its proper divisors (306376709).

12002111131 is a wasteful number, since it uses less digits than its factorization.

12002111131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2526.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 12002111131 its reverse (13111120021), we get a palindrome (25113231152).

The spelling of 12002111131 in words is "twelve billion, two million, one hundred eleven thousand, one hundred thirty-one".