203213023 has 8 divisors (see below), whose sum is σ = 219179408. Its totient is φ = 187294464.

The previous prime is 203212993. The next prime is 203213033. The reversal of 203213023 is 320312302.

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 203213023 - 2²⁵ = 169658591 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 203212988 and 203213006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203213033) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2865 + ... + 20362.

It is an arithmetic number, because the mean of its divisors is an integer number (27397426).

Almost surely, 2^203213023 is an apocalyptic number.

203213023 is a deficient number, since it is larger than the sum of its proper divisors (15966385).

203213023 is a wasteful number, since it uses less digits than its factorization.

203213023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23913.

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

The square root of 203213023 is about 14255.2805303859. The cubic root of 203213023 is about 587.9185710661.

Adding to 203213023 its reverse (320312302), we get a palindrome (523525325).

The spelling of 203213023 in words is "two hundred three million, two hundred thirteen thousand, twenty-three".