20323323111321 has 12 divisors (see below), whose sum is σ = 29356454477220. Its totient is φ = 13548631312800.

The previous prime is 20323323111307. The next prime is 20323323111401. The reversal of 20323323111321 is 12311132332302.

20323323111321 is a `hidden beast` number, since 2 + 0 + 3 + 2 + 3 + 323 + 1 + 11 + 321 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8172800333721 + 12150522777600 = 2858811^2 + 3485760^2 .

It is not a de Polignac number, because 20323323111321 - 2¹⁸ = 20323322849177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20323323115321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20382826 + ... + 21356643.

It is an arithmetic number, because the mean of its divisors is an integer number (2446371206435).

Almost surely, 2^{20323323111321} is an apocalyptic number.

It is an amenable number.

20323323111321 is a deficient number, since it is larger than the sum of its proper divisors (9033131365899).

20323323111321 is a wasteful number, since it uses less digits than its factorization.

20323323111321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41793576 (or 41793573 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 20323323111321 its reverse (12311132332302), we get a palindrome (32634455443623).

The spelling of 20323323111321 in words is "twenty trillion, three hundred twenty-three billion, three hundred twenty-three million, one hundred eleven thousand, three hundred twenty-one".