20213204112404 has 24 divisors (see below), whose sum is σ = 38160555162408. Its totient is φ = 9332622540800.

The previous prime is 20213204112401. The next prime is 20213204112419. The reversal of 20213204112404 is 40421140231202.

It can be written as a sum of positive squares in 4 ways, for example, as 7253218512400 + 12959985600004 = 2693180^2 + 3599998^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20213204112401) 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 in 7 ways as a sum of consecutive naturals, for example, 2804269997 + ... + 2804277204.

It is an arithmetic number, because the mean of its divisors is an integer number (1590023131767).

Almost surely, 2^{20213204112404} is an apocalyptic number.

It is an amenable number.

20213204112404 is a deficient number, since it is larger than the sum of its proper divisors (17947351050004).

20213204112404 is a wasteful number, since it uses less digits than its factorization.

20213204112404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5608547275 (or 5608547273 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 20213204112404 its reverse (40421140231202), we get a palindrome (60634344343606).

The spelling of 20213204112404 in words is "twenty trillion, two hundred thirteen billion, two hundred four million, one hundred twelve thousand, four hundred four".