202030423 has 4 divisors (see below), whose sum is σ = 230891920. Its totient is φ = 173168928.

The previous prime is 202030417. The next prime is 202030447. The reversal of 202030423 is 324030202.

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

It is a cyclic number.

It is not a de Polignac number, because 202030423 - 2⁵ = 202030391 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 202030397 and 202030406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (202030403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14430738 + ... + 14430751.

It is an arithmetic number, because the mean of its divisors is an integer number (57722980).

Almost surely, 2^202030423 is an apocalyptic number.

202030423 is a deficient number, since it is larger than the sum of its proper divisors (28861497).

202030423 is an equidigital number, since it uses as much as digits as its factorization.

202030423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28861496.

The product of its (nonzero) digits is 288, while the sum is 16.

The square root of 202030423 is about 14213.7406406618. The cubic root of 202030423 is about 586.7758857792.

Adding to 202030423 its reverse (324030202), we get a palindrome (526060625).

The spelling of 202030423 in words is "two hundred two million, thirty thousand, four hundred twenty-three".