12020013311 has 16 divisors (see below), whose sum is σ = 12283832736. Its totient is φ = 11759548416.

The previous prime is 12020013283. The next prime is 12020013347. The reversal of 12020013311 is 11331002021.

It is a cyclic number.

It is not a de Polignac number, because 12020013311 - 2¹⁴ = 12019996927 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12020013361) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6402905 + ... + 6404781.

It is an arithmetic number, because the mean of its divisors is an integer number (767739546).

Almost surely, 2^12020013311 is an apocalyptic number.

12020013311 is a deficient number, since it is larger than the sum of its proper divisors (263819425).

12020013311 is a wasteful number, since it uses less digits than its factorization.

12020013311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2698.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 12020013311 its reverse (11331002021), we get a palindrome (23351015332).

The spelling of 12020013311 in words is "twelve billion, twenty million, thirteen thousand, three hundred eleven".