202130023 has 2 divisors, whose sum is σ = 202130024. Its totient is φ = 202130022.

The previous prime is 202130011. The next prime is 202130039. The reversal of 202130023 is 320031202.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 202130023 - 2²⁵ = 168575591 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202129985 and 202130012.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (202130723) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101065011 + 101065012.

It is an arithmetic number, because the mean of its divisors is an integer number (101065012).

Almost surely, 2^202130023 is an apocalyptic number.

202130023 is a deficient number, since it is larger than the sum of its proper divisors (1).

202130023 is an equidigital number, since it uses as much as digits as its factorization.

202130023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 202130023 is about 14217.2438608895. The cubic root of 202130023 is about 586.8722958083.

Adding to 202130023 its reverse (320031202), we get a palindrome (522161225).

The spelling of 202130023 in words is "two hundred two million, one hundred thirty thousand, twenty-three".