204020211000443 has 64 divisors (see below), whose sum is σ = 227840428800000. Its totient is φ = 181705695012864.

The previous prime is 204020211000427. The next prime is 204020211000449. The reversal of 204020211000443 is 344000112020402.

It is a cyclic number.

It is not a de Polignac number, because 204020211000443 - 2⁴ = 204020211000427 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (204020211000449) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 14022964133 + ... + 14022978681.

It is an arithmetic number, because the mean of its divisors is an integer number (3560006700000).

Almost surely, 2^{204020211000443} is an apocalyptic number.

204020211000443 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

204020211000443 is a deficient number, since it is larger than the sum of its proper divisors (23820217799557).

204020211000443 is a wasteful number, since it uses less digits than its factorization.

204020211000443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15804.

The product of its (nonzero) digits is 1536, while the sum is 23.

Adding to 204020211000443 its reverse (344000112020402), we get a palindrome (548020323020845).

The spelling of 204020211000443 in words is "two hundred four trillion, twenty billion, two hundred eleven million, four hundred forty-three", and thus it is an aban number.