203400421330208 has 12 divisors (see below), whose sum is σ = 400444579493910. Its totient is φ = 101700210665088.

The previous prime is 203400421330207. The next prime is 203400421330219. The reversal of 203400421330208 is 802033124004302.

203400421330208 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 127786475015824 + 75613946314384 = 11304268^2 + 8695628^2 .

It is a super-2 number, since 2×203400421330208² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (32), and also a Moran number because the ratio is a prime number: 6356263166569 = 203400421330208 / (2 + 0 + 3 + 4 + 0 + 0 + 4 + 2 + 1 + 3 + 3 + 0 + 2 + 0 + 8).

It is not an unprimeable number, because it can be changed into a prime (203400421330201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3178131583253 + ... + 3178131583316.

Almost surely, 2^{203400421330208} is an apocalyptic number.

It is an amenable number.

203400421330208 is a deficient number, since it is larger than the sum of its proper divisors (197044158163702).

203400421330208 is an equidigital number, since it uses as much as digits as its factorization.

203400421330208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6356263166579 (or 6356263166571 counting only the distinct ones).

The product of its (nonzero) digits is 27648, while the sum is 32.

The spelling of 203400421330208 in words is "two hundred three trillion, four hundred billion, four hundred twenty-one million, three hundred thirty thousand, two hundred eight".