12120200311 has 4 divisors (see below), whose sum is σ = 12120445792. Its totient is φ = 12119954832.

The previous prime is 12120200299. The next prime is 12120200321. The reversal of 12120200311 is 11300202121.

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

It is a cyclic number.

It is not a de Polignac number, because 12120200311 - 2⁹ = 12120199799 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12120200291 and 12120200300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120200321) 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, 20031 + ... + 156976.

It is an arithmetic number, because the mean of its divisors is an integer number (3030111448).

Almost surely, 2^12120200311 is an apocalyptic number.

12120200311 is a deficient number, since it is larger than the sum of its proper divisors (245481).

12120200311 is an equidigital number, since it uses as much as digits as its factorization.

12120200311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 245480.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12120200311 its reverse (11300202121), we get a palindrome (23420402432).

The spelling of 12120200311 in words is "twelve billion, one hundred twenty million, two hundred thousand, three hundred eleven".