202312023 has 4 divisors (see below), whose sum is σ = 269749368. Its totient is φ = 134874680.

The previous prime is 202312013. The next prime is 202312039. The reversal of 202312023 is 320213202.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-202312023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202311993 and 202312011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202312013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33718668 + ... + 33718673.

It is an arithmetic number, because the mean of its divisors is an integer number (67437342).

Almost surely, 2^202312023 is an apocalyptic number.

202312023 is a deficient number, since it is larger than the sum of its proper divisors (67437345).

202312023 is an equidigital number, since it uses as much as digits as its factorization.

202312023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67437344.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 202312023 is about 14223.6430987283. The cubic root of 202312023 is about 587.0483849652.

Adding to 202312023 its reverse (320213202), we get a palindrome (522525225).

The spelling of 202312023 in words is "two hundred two million, three hundred twelve thousand, twenty-three".