203221010231323 has 4 divisors (see below), whose sum is σ = 232252583121520. Its totient is φ = 174189437341128.

The previous prime is 203221010231257. The next prime is 203221010231333. The reversal of 203221010231323 is 323132010122302.

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 203221010231323 - 2²⁵ = 203220976676891 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203221010231333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14515786445088 + ... + 14515786445101.

It is an arithmetic number, because the mean of its divisors is an integer number (58063145780380).

Almost surely, 2^{203221010231323} is an apocalyptic number.

203221010231323 is a deficient number, since it is larger than the sum of its proper divisors (29031572890197).

203221010231323 is an equidigital number, since it uses as much as digits as its factorization.

203221010231323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29031572890196.

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203221010231323 its reverse (323132010122302), we get a palindrome (526353020353625).

The spelling of 203221010231323 in words is "two hundred three trillion, two hundred twenty-one billion, ten million, two hundred thirty-one thousand, three hundred twenty-three".