12020333111 has 6 divisors (see below), whose sum is σ = 12420594936. Its totient is φ = 11632579500.

The previous prime is 12020333069. The next prime is 12020333161. The reversal of 12020333111 is 11133302021.

It is not a de Polignac number, because 12020333111 - 2¹⁰ = 12020332087 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 12020333111.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020333161) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 6253115 + ... + 6255036.

It is an arithmetic number, because the mean of its divisors is an integer number (2070099156).

Almost surely, 2^12020333111 is an apocalyptic number.

12020333111 is a deficient number, since it is larger than the sum of its proper divisors (400261825).

12020333111 is an equidigital number, since it uses as much as digits as its factorization.

12020333111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12508213 (or 12508182 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12020333111 its reverse (11133302021), we get a palindrome (23153635132).

The spelling of 12020333111 in words is "twelve billion, twenty million, three hundred thirty-three thousand, one hundred eleven".