203203443323420 has 24 divisors (see below), whose sum is σ = 428497883400048. Its totient is φ = 80944110201600.

The previous prime is 203203443323383. The next prime is 203203443323431. The reversal of 203203443323420 is 24323344302302.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21079190546 + ... + 21079200185.

It is an arithmetic number, because the mean of its divisors is an integer number (17854078475002).

Almost surely, 2^{203203443323420} is an apocalyptic number.

203203443323420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203203443323420 is an abundant number, since it is smaller than the sum of its proper divisors (225294440076628).

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

203203443323420 is a wasteful number, since it uses less digits than its factorization.

203203443323420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42158390981 (or 42158390979 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 35.

Adding to 203203443323420 its reverse (24323344302302), we get a palindrome (227526787625722).

The spelling of 203203443323420 in words is "two hundred three trillion, two hundred three billion, four hundred forty-three million, three hundred twenty-three thousand, four hundred twenty".