12020113311 has 8 divisors (see below), whose sum is σ = 16056119424. Its totient is φ = 7998758040.

The previous prime is 12020113291. The next prime is 12020113319. The reversal of 12020113311 is 11331102021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12020113311 - 2⁹ = 12020112799 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020113319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3660795 + ... + 3664076.

It is an arithmetic number, because the mean of its divisors is an integer number (2007014928).

Almost surely, 2^12020113311 is an apocalyptic number.

12020113311 is a deficient number, since it is larger than the sum of its proper divisors (4036006113).

12020113311 is an equidigital number, since it uses as much as digits as its factorization.

12020113311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7325421.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12020113311 its reverse (11331102021), we get a palindrome (23351215332).

The spelling of 12020113311 in words is "twelve billion, twenty million, one hundred thirteen thousand, three hundred eleven".