203443463420 has 48 divisors (see below), whose sum is σ = 428701084896. Its totient is φ = 81097632000.

The previous prime is 203443463411. The next prime is 203443463441. The reversal of 203443463420 is 24364344302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21053390 + ... + 21063050.

It is an arithmetic number, because the mean of its divisors is an integer number (8931272602).

Almost surely, 2^203443463420 is an apocalyptic number.

203443463420 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203443463420 is an abundant number, since it is smaller than the sum of its proper divisors (225257621476).

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

203443463420 is a wasteful number, since it uses less digits than its factorization.

203443463420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13182 (or 13180 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

The spelling of 203443463420 in words is "two hundred three billion, four hundred forty-three million, four hundred sixty-three thousand, four hundred twenty".