203313344321323 has 4 divisors (see below), whose sum is σ = 203313407080608. Its totient is φ = 203313281562040.

The previous prime is 203313344321287. The next prime is 203313344321401. The reversal of 203313344321323 is 323123443313302.

It is a happy number.

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 203313344321323 - 2²¹ = 203313342224171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203313344324323) 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, 26239636 + ... + 33092977.

It is an arithmetic number, because the mean of its divisors is an integer number (50828351770152).

Almost surely, 2^{203313344321323} is an apocalyptic number.

203313344321323 is a deficient number, since it is larger than the sum of its proper divisors (62759285).

203313344321323 is an equidigital number, since it uses as much as digits as its factorization.

203313344321323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 62759284.

The product of its (nonzero) digits is 279936, while the sum is 37.

Adding to 203313344321323 its reverse (323123443313302), we get a palindrome (526436787634625).

The spelling of 203313344321323 in words is "two hundred three trillion, three hundred thirteen billion, three hundred forty-four million, three hundred twenty-one thousand, three hundred twenty-three".