20311324003422 has 80 divisors (see below), whose sum is σ = 45770920905600. Its totient is φ = 6731992388880.

The previous prime is 20311324003403. The next prime is 20311324003427. The reversal of 20311324003422 is 22430042311302.

20311324003422 is a `hidden beast` number, since 2 + 0 + 311 + 3 + 2 + 4 + 0 + 0 + 342 + 2 = 666.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20311324003427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 394898047 + ... + 394949477.

It is an arithmetic number, because the mean of its divisors is an integer number (572136511320).

Almost surely, 2^{20311324003422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20311324003422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (22885460452800).

20311324003422 is an abundant number, since it is smaller than the sum of its proper divisors (25459596902178).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20311324003422 is a wasteful number, since it uses less digits than its factorization.

20311324003422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 65243 (or 65234 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 20311324003422 its reverse (22430042311302), we get a palindrome (42741366314724).

The spelling of 20311324003422 in words is "twenty trillion, three hundred eleven billion, three hundred twenty-four million, three thousand, four hundred twenty-two".