20204537073321 has 8 divisors (see below), whose sum is σ = 26939420529120. Its totient is φ = 13469672499872.

The previous prime is 20204537073293. The next prime is 20204537073449. The reversal of 20204537073321 is 12337073540202.

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

It is a cyclic number.

It is not a de Polignac number, because 20204537073321 - 2¹⁹ = 20204536549033 is a prime.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 20204537073321.

It is not an unprimeable number, because it can be changed into a prime (20204537074321) 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, 1999851 + ... + 6663968.

It is an arithmetic number, because the mean of its divisors is an integer number (3367427566140).

Almost surely, 2^{20204537073321} is an apocalyptic number.

It is an amenable number.

20204537073321 is a deficient number, since it is larger than the sum of its proper divisors (6734883455799).

20204537073321 is an equidigital number, since it uses as much as digits as its factorization.

20204537073321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9441175.

The product of its (nonzero) digits is 211680, while the sum is 39.

The spelling of 20204537073321 in words is "twenty trillion, two hundred four billion, five hundred thirty-seven million, seventy-three thousand, three hundred twenty-one".