132771121621 has 2 divisors, whose sum is σ = 132771121622. Its totient is φ = 132771121620.

The previous prime is 132771121583. The next prime is 132771121627. The reversal of 132771121621 is 126121177231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 82188862596 + 50582259025 = 286686^2 + 224905^2 .

It is a cyclic number.

It is not a de Polignac number, because 132771121621 - 2¹¹ = 132771119573 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (132771121627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66385560810 + 66385560811.

It is an arithmetic number, because the mean of its divisors is an integer number (66385560811).

Almost surely, 2^132771121621 is an apocalyptic number.

It is an amenable number.

132771121621 is a deficient number, since it is larger than the sum of its proper divisors (1).

132771121621 is an equidigital number, since it uses as much as digits as its factorization.

132771121621 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7056, while the sum is 34.

Adding to 132771121621 its reverse (126121177231), we get a palindrome (258892298852).

The spelling of 132771121621 in words is "one hundred thirty-two billion, seven hundred seventy-one million, one hundred twenty-one thousand, six hundred twenty-one".