12001132111 has 2 divisors, whose sum is σ = 12001132112. Its totient is φ = 12001132110.

The previous prime is 12001132063. The next prime is 12001132123. The reversal of 12001132111 is 11123110021.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (11123110021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12001132111 - 2²⁵ = 11967577679 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12001132091 and 12001132100.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12001132511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6000566055 + 6000566056.

It is an arithmetic number, because the mean of its divisors is an integer number (6000566056).

Almost surely, 2^12001132111 is an apocalyptic number.

12001132111 is a deficient number, since it is larger than the sum of its proper divisors (1).

12001132111 is an equidigital number, since it uses as much as digits as its factorization.

12001132111 is an evil number, because the sum of its binary digits is even.

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

Adding to 12001132111 its reverse (11123110021), we get a palindrome (23124242132).

It can be divided in two parts, 1200 and 1132111, that added together give a palindrome (1133311).

The spelling of 12001132111 in words is "twelve billion, one million, one hundred thirty-two thousand, one hundred eleven".