20042004230321 has 8 divisors (see below), whose sum is σ = 21952702402920. Its totient is φ = 18212612363008.

The previous prime is 20042004230273. The next prime is 20042004230359. The reversal of 20042004230321 is 12303240024002.

It can be written as a sum of positive squares in 4 ways, for example, as 8006273975296 + 12035730255025 = 2829536^2 + 3469255^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20042004230321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20042004230921) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20326575806 + ... + 20326576791.

It is an arithmetic number, because the mean of its divisors is an integer number (2744087800365).

Almost surely, 2^{20042004230321} is an apocalyptic number.

It is an amenable number.

20042004230321 is a deficient number, since it is larger than the sum of its proper divisors (1910698172599).

20042004230321 is a wasteful number, since it uses less digits than its factorization.

20042004230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40653152643.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 20042004230321 its reverse (12303240024002), we get a palindrome (32345244254323).

The spelling of 20042004230321 in words is "twenty trillion, forty-two billion, four million, two hundred thirty thousand, three hundred twenty-one".