12132201311 has 4 divisors (see below), whose sum is σ = 12140704632. Its totient is φ = 12123697992.

The previous prime is 12132201293. The next prime is 12132201343. The reversal of 12132201311 is 11310223121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12132201311 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12132201311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12132201511) 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 3 ways as a sum of consecutive naturals, for example, 4249520 + ... + 4252373.

It is an arithmetic number, because the mean of its divisors is an integer number (3035176158).

Almost surely, 2^12132201311 is an apocalyptic number.

12132201311 is a deficient number, since it is larger than the sum of its proper divisors (8503321).

12132201311 is an equidigital number, since it uses as much as digits as its factorization.

12132201311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8503320.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12132201311 its reverse (11310223121), we get a palindrome (23442424432).

The spelling of 12132201311 in words is "twelve billion, one hundred thirty-two million, two hundred one thousand, three hundred eleven".