12020120311 has 8 divisors (see below), whose sum is σ = 12146609664. Its totient is φ = 11893893240.

The previous prime is 12020120263. The next prime is 12020120383. The reversal of 12020120311 is 11302102021.

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

It is a cyclic number.

It is not a de Polignac number, because 12020120311 - 2¹⁷ = 12019989239 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020120291 and 12020120300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020120711) 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, 27256 + ... + 157426.

It is an arithmetic number, because the mean of its divisors is an integer number (1518326208).

Almost surely, 2^12020120311 is an apocalyptic number.

12020120311 is a deficient number, since it is larger than the sum of its proper divisors (126489353).

12020120311 is a wasteful number, since it uses less digits than its factorization.

12020120311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131141.

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

Adding to 12020120311 its reverse (11302102021), we get a palindrome (23322222332).

The spelling of 12020120311 in words is "twelve billion, twenty million, one hundred twenty thousand, three hundred eleven".