202023 has 6 divisors (see below), whose sum is σ = 291824. Its totient is φ = 134676.

The previous prime is 202021. The next prime is 202031. The reversal of 202023 is 320202.

202023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 202023 - 2¹ = 202021 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9), and also a Moran number because the ratio is a prime number: 22447 = 202023 / (2 + 0 + 2 + 0 + 2 + 3).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 201996 and 202014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202021) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11215 + ... + 11232.

2²⁰²⁰²³ is an apocalyptic number.

202023 is a deficient number, since it is larger than the sum of its proper divisors (89801).

202023 is a wasteful number, since it uses less digits than its factorization.

202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22453 (or 22450 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 9.

The square root of 202023 is about 449.4696875207. The cubic root of 202023 is about 58.6768699253.

Adding to 202023 its reverse (320202), we get a palindrome (522225).

It can be divided in two parts, 20202 and 3, that multiplied together give a palindrome (60606).

The spelling of 202023 in words is "two hundred two thousand, twenty-three", and thus it is an iban number.