203320300321343 has 4 divisors (see below), whose sum is σ = 210331345160040. Its totient is φ = 196309255482648.

The previous prime is 203320300321267. The next prime is 203320300321349. The reversal of 203320300321343 is 343123003023302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203320300321343 - 2¹² = 203320300317247 is a prime.

It is a super-2 number, since 2×203320300321343² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (29), and also a Moran number because the ratio is a prime number: 7011044838667 = 203320300321343 / (2 + 0 + 3 + 3 + 2 + 0 + 3 + 0 + 0 + 3 + 2 + 1 + 3 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203320300321349) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3505522419305 + ... + 3505522419362.

It is an arithmetic number, because the mean of its divisors is an integer number (52582836290010).

Almost surely, 2^{203320300321343} is an apocalyptic number.

203320300321343 is a deficient number, since it is larger than the sum of its proper divisors (7011044838697).

203320300321343 is an equidigital number, since it uses as much as digits as its factorization.

203320300321343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7011044838696.

The product of its (nonzero) digits is 23328, while the sum is 29.

Adding to 203320300321343 its reverse (343123003023302), we get a palindrome (546443303344645).

The spelling of 203320300321343 in words is "two hundred three trillion, three hundred twenty billion, three hundred million, three hundred twenty-one thousand, three hundred forty-three".