12011032030721 has 2 divisors, whose sum is σ = 12011032030722. Its totient is φ = 12011032030720.

The previous prime is 12011032030693. The next prime is 12011032030741. The reversal of 12011032030721 is 12703023011021.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10157676526321 + 1853355504400 = 3187111^2 + 1361380^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12011032030721 is a prime.

It is not a weakly prime, because it can be changed into another prime (12011032030741) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6005516015360 + 6005516015361.

It is an arithmetic number, because the mean of its divisors is an integer number (6005516015361).

Almost surely, 2^{12011032030721} is an apocalyptic number.

It is an amenable number.

12011032030721 is a deficient number, since it is larger than the sum of its proper divisors (1).

12011032030721 is an equidigital number, since it uses as much as digits as its factorization.

12011032030721 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 504, while the sum is 23.

Adding to 12011032030721 its reverse (12703023011021), we get a palindrome (24714055041742).

The spelling of 12011032030721 in words is "twelve trillion, eleven billion, thirty-two million, thirty thousand, seven hundred twenty-one".