11321131332061 has 2 divisors, whose sum is σ = 11321131332062. Its totient is φ = 11321131332060.

The previous prime is 11321131331969. The next prime is 11321131332149. The reversal of 11321131332061 is 16023313112311.

It is a happy number.

11321131332061 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 7559447808025 + 3761683524036 = 2749445^2 + 1939506^2 .

It is a cyclic number.

It is not a de Polignac number, because 11321131332061 - 2¹¹ = 11321131330013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11321131332761) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5660565666030 + 5660565666031.

It is an arithmetic number, because the mean of its divisors is an integer number (5660565666031).

Almost surely, 2^{11321131332061} is an apocalyptic number.

It is an amenable number.

11321131332061 is a deficient number, since it is larger than the sum of its proper divisors (1).

11321131332061 is an equidigital number, since it uses as much as digits as its factorization.

11321131332061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 28.

Adding to 11321131332061 its reverse (16023313112311), we get a palindrome (27344444444372).

The spelling of 11321131332061 in words is "eleven trillion, three hundred twenty-one billion, one hundred thirty-one million, three hundred thirty-two thousand, sixty-one".