203312553304 has 32 divisors (see below), whose sum is σ = 437277427200. Its totient is φ = 86812417440.

The previous prime is 203312553289. The next prime is 203312553331. The reversal of 203312553304 is 403355213302.

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 7 ways as a sum of consecutive naturals, for example, 6683314 + ... + 6713665.

It is an arithmetic number, because the mean of its divisors is an integer number (13664919600).

Almost surely, 2^203312553304 is an apocalyptic number.

It is an amenable number.

203312553304 is an abundant number, since it is smaller than the sum of its proper divisors (233964873896).

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

203312553304 is a wasteful number, since it uses less digits than its factorization.

203312553304 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13397263 (or 13397259 counting only the distinct ones).

The product of its (nonzero) digits is 32400, while the sum is 31.

Adding to 203312553304 its reverse (403355213302), we get a palindrome (606667766606).

The spelling of 203312553304 in words is "two hundred three billion, three hundred twelve million, five hundred fifty-three thousand, three hundred four".