203231023 has 4 divisors (see below), whose sum is σ = 203352480. Its totient is φ = 203109568.

The previous prime is 203230997. The next prime is 203231027. The reversal of 203231023 is 320132302.

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 203231023 - 2²¹ = 201133871 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203230988 and 203231006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203231027) 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, 58183 + ... + 61576.

It is an arithmetic number, because the mean of its divisors is an integer number (50838120).

Almost surely, 2^203231023 is an apocalyptic number.

203231023 is a deficient number, since it is larger than the sum of its proper divisors (121457).

203231023 is a wasteful number, since it uses less digits than its factorization.

203231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121456.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 203231023 is about 14255.9118613998. The cubic root of 203231023 is about 587.9359292414.

Adding to 203231023 its reverse (320132302), we get a palindrome (523363325).

The spelling of 203231023 in words is "two hundred three million, two hundred thirty-one thousand, twenty-three".