203254431323 has 8 divisors (see below), whose sum is σ = 215232133392. Its totient is φ = 191279124736.

The previous prime is 203254431319. The next prime is 203254431349. The reversal of 203254431323 is 323134452302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203254431323 - 2² = 203254431319 is a prime.

It is a super-2 number, since 2×203254431323² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203254431323.

It is not an unprimeable number, because it can be changed into a prime (203254431313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 422690 + ... + 764967.

It is an arithmetic number, because the mean of its divisors is an integer number (26904016674).

Almost surely, 2^203254431323 is an apocalyptic number.

203254431323 is a deficient number, since it is larger than the sum of its proper divisors (11977702069).

203254431323 is a wasteful number, since it uses less digits than its factorization.

203254431323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1197741.

The product of its (nonzero) digits is 51840, while the sum is 32.

Adding to 203254431323 its reverse (323134452302), we get a palindrome (526388883625).

The spelling of 203254431323 in words is "two hundred three billion, two hundred fifty-four million, four hundred thirty-one thousand, three hundred twenty-three".