20213403323204 has 192 divisors, whose sum is σ = 46417661853696. Its totient is φ = 7482607013376.

The previous prime is 20213403323203. The next prime is 20213403323231. The reversal of 20213403323204 is 40232330431202.

It is not an unprimeable number, because it can be changed into a prime (20213403323203) 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 63 ways as a sum of consecutive naturals, for example, 937661594 + ... + 937683150.

It is an arithmetic number, because the mean of its divisors is an integer number (241758655488).

Almost surely, 2^{20213403323204} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20213403323204, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23208830926848).

20213403323204 is an abundant number, since it is smaller than the sum of its proper divisors (26204258530492).

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

20213403323204 is a wasteful number, since it uses less digits than its factorization.

20213403323204 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24034 (or 24032 counting only the distinct ones).

The product of its (nonzero) digits is 20736, while the sum is 29.

Adding to 20213403323204 its reverse (40232330431202), we get a palindrome (60445733754406).

The spelling of 20213403323204 in words is "twenty trillion, two hundred thirteen billion, four hundred three million, three hundred twenty-three thousand, two hundred four".