204421430401320 has 128 divisors (see below), whose sum is σ = 687097093011840. Its totient is φ = 48217339837440.

The previous prime is 204421430401277. The next prime is 204421430401343. The reversal of 204421430401320 is 23104034124402.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2092717647 + ... + 2092815326.

It is an arithmetic number, because the mean of its divisors is an integer number (5367946039155).

Almost surely, 2^{204421430401320} is an apocalyptic number.

204421430401320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

204421430401320 is an abundant number, since it is smaller than the sum of its proper divisors (482675662610520).

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

204421430401320 is a wasteful number, since it uses less digits than its factorization.

204421430401320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4185533035 (or 4185533031 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 204421430401320 its reverse (23104034124402), we get a palindrome (227525464525722).

The spelling of 204421430401320 in words is "two hundred four trillion, four hundred twenty-one billion, four hundred thirty million, four hundred one thousand, three hundred twenty".