423030143 has 4 divisors (see below), whose sum is σ = 423072840. Its totient is φ = 422987448.

The previous prime is 423030133. The next prime is 423030203. The reversal of 423030143 is 341030324.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423030143 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423030133) 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, 2096 + ... + 29162.

It is an arithmetic number, because the mean of its divisors is an integer number (105768210).

Almost surely, 2^423030143 is an apocalyptic number.

423030143 is a deficient number, since it is larger than the sum of its proper divisors (42697).

423030143 is a wasteful number, since it uses less digits than its factorization.

423030143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42696.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 423030143 is about 20567.6965895552. The cubic root of 423030143 is about 750.6839053602.

Adding to 423030143 its reverse (341030324), we get a palindrome (764060467).

The spelling of 423030143 in words is "four hundred twenty-three million, thirty thousand, one hundred forty-three".