12020011043 has 4 divisors (see below), whose sum is σ = 12020503368. Its totient is φ = 12019518720.

The previous prime is 12020011019. The next prime is 12020011051. The reversal of 12020011043 is 34011002021.

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 12020011043 - 2⁸ = 12020010787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12020011013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 207518 + ... + 259043.

It is an arithmetic number, because the mean of its divisors is an integer number (3005125842).

Almost surely, 2^12020011043 is an apocalyptic number.

12020011043 is a deficient number, since it is larger than the sum of its proper divisors (492325).

12020011043 is an equidigital number, since it uses as much as digits as its factorization.

12020011043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 492324.

The product of its (nonzero) digits is 48, while the sum is 14.

Adding to 12020011043 its reverse (34011002021), we get a palindrome (46031013064).

The spelling of 12020011043 in words is "twelve billion, twenty million, eleven thousand, forty-three".