203104355020 has 48 divisors (see below), whose sum is σ = 488106759168. Its totient is φ = 69542020800.

The previous prime is 203104355011. The next prime is 203104355053. The reversal of 203104355020 is 20553401302.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 872256 + ... + 1080295.

It is an arithmetic number, because the mean of its divisors is an integer number (10168890816).

Almost surely, 2^203104355020 is an apocalyptic number.

203104355020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203104355020 is an abundant number, since it is smaller than the sum of its proper divisors (285002404148).

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

203104355020 is a wasteful number, since it uses less digits than its factorization.

203104355020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1953310 (or 1953308 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 203104355020 its reverse (20553401302), we get a palindrome (223657756322).

The spelling of 203104355020 in words is "two hundred three billion, one hundred four million, three hundred fifty-five thousand, twenty".