12120443011 has 2 divisors, whose sum is σ = 12120443012. Its totient is φ = 12120443010.

The previous prime is 12120443003. The next prime is 12120443033. The reversal of 12120443011 is 11034402121.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 12120443011 - 2³ = 12120443003 is a prime.

It is a super-2 number, since 2×12120443011² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12120443011.

It is not a weakly prime, because it can be changed into another prime (12120443611) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6060221505 + 6060221506.

It is an arithmetic number, because the mean of its divisors is an integer number (6060221506).

Almost surely, 2^12120443011 is an apocalyptic number.

12120443011 is a deficient number, since it is larger than the sum of its proper divisors (1).

12120443011 is an equidigital number, since it uses as much as digits as its factorization.

12120443011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12120443011 its reverse (11034402121), we get a palindrome (23154845132).

The spelling of 12120443011 in words is "twelve billion, one hundred twenty million, four hundred forty-three thousand, eleven".