203401323 has 12 divisors (see below), whose sum is σ = 303279808. Its totient is φ = 131226480.

The previous prime is 203401313. The next prime is 203401339. The reversal of 203401323 is 323104302.

203401323 is a `hidden beast` number, since 2 + 0 + 340 + 1 + 323 = 666.

It is not a de Polignac number, because 203401323 - 2⁵ = 203401291 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203401296 and 203401305.

It is not an unprimeable number, because it can be changed into a prime (203401313) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 364240 + ... + 364797.

Almost surely, 2^203401323 is an apocalyptic number.

203401323 is a deficient number, since it is larger than the sum of its proper divisors (99878485).

203401323 is a wasteful number, since it uses less digits than its factorization.

203401323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 729074 (or 729071 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 203401323 is about 14261.8835712538. The cubic root of 203401323 is about 588.1001061686.

Adding to 203401323 its reverse (323104302), we get a palindrome (526505625).

The spelling of 203401323 in words is "two hundred three million, four hundred one thousand, three hundred twenty-three".