11323020020161 has 2 divisors, whose sum is σ = 11323020020162. Its totient is φ = 11323020020160.

The previous prime is 11323020020113. The next prime is 11323020020237. The reversal of 11323020020161 is 16102002032311.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10033816464400 + 1289203555761 = 3167620^2 + 1135431^2 .

It is a cyclic number.

It is not a de Polignac number, because 11323020020161 - 2¹⁹ = 11323019495873 is a prime.

It is not a weakly prime, because it can be changed into another prime (11323020020461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5661510010080 + 5661510010081.

It is an arithmetic number, because the mean of its divisors is an integer number (5661510010081).

Almost surely, 2^{11323020020161} is an apocalyptic number.

It is an amenable number.

11323020020161 is a deficient number, since it is larger than the sum of its proper divisors (1).

11323020020161 is an equidigital number, since it uses as much as digits as its factorization.

11323020020161 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 11323020020161 its reverse (16102002032311), we get a palindrome (27425022052472).

The spelling of 11323020020161 in words is "eleven trillion, three hundred twenty-three billion, twenty million, twenty thousand, one hundred sixty-one".