203212400021304 has 32 divisors (see below), whose sum is σ = 508064386719120. Its totient is φ = 67733015118336.

The previous prime is 203212400021299. The next prime is 203212400021327. The reversal of 203212400021304 is 403120004212302.

It is a happy number.

203212400021304 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 277849399 + ... + 278579814.

Almost surely, 2^{203212400021304} is an apocalyptic number.

203212400021304 is a gapful number since it is divisible by the number (24) formed by its first and last digit.

It is an amenable number.

203212400021304 is an abundant number, since it is smaller than the sum of its proper divisors (304851986697816).

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

203212400021304 is a wasteful number, since it uses less digits than its factorization.

203212400021304 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 556444439 (or 556444435 counting only the distinct ones).

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

Adding to 203212400021304 its reverse (403120004212302), we get a palindrome (606332404233606).

The spelling of 203212400021304 in words is "two hundred three trillion, two hundred twelve billion, four hundred million, twenty-one thousand, three hundred four".