202423023 has 32 divisors (see below), whose sum is σ = 341383680. Its totient is φ = 117342720.

The previous prime is 202423019. The next prime is 202423037. The reversal of 202423023 is 320324202.

It is not a de Polignac number, because 202423023 - 2² = 202423019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202422987 and 202423005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202423003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7986 + ... + 21647.

It is an arithmetic number, because the mean of its divisors is an integer number (10668240).

Almost surely, 2^202423023 is an apocalyptic number.

202423023 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

202423023 is a deficient number, since it is larger than the sum of its proper divisors (138960657).

202423023 is a wasteful number, since it uses less digits than its factorization.

202423023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29676 (or 29670 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 18.

The square root of 202423023 is about 14227.5445175898. The cubic root of 202423023 is about 587.1557281606.

Adding to 202423023 its reverse (320324202), we get a palindrome (522747225).

The spelling of 202423023 in words is "two hundred two million, four hundred twenty-three thousand, twenty-three".