203320021104420 has 384 divisors, whose sum is σ = 629195599872000. Its totient is φ = 48647775191040.

The previous prime is 203320021104407. The next prime is 203320021104451. The reversal of 203320021104420 is 24401120023302.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 33446290941 + ... + 33446297019.

It is an arithmetic number, because the mean of its divisors is an integer number (1638530208000).

Almost surely, 2^{203320021104420} is an apocalyptic number.

203320021104420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203320021104420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (314597799936000).

203320021104420 is an abundant number, since it is smaller than the sum of its proper divisors (425875578767580).

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

203320021104420 is a wasteful number, since it uses less digits than its factorization.

203320021104420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8323 (or 8321 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203320021104420 its reverse (24401120023302), we get a palindrome (227721141127722).

The spelling of 203320021104420 in words is "two hundred three trillion, three hundred twenty billion, twenty-one million, one hundred four thousand, four hundred twenty".