630231423 has 4 divisors (see below), whose sum is σ = 840308568. Its totient is φ = 420154280.

The previous prime is 630231419. The next prime is 630231467. The reversal of 630231423 is 324132036.

630231423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 630231423 - 2² = 630231419 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 630231393 and 630231402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (630230423) 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, 105038568 + ... + 105038573.

It is an arithmetic number, because the mean of its divisors is an integer number (210077142).

Almost surely, 2^630231423 is an apocalyptic number.

630231423 is a deficient number, since it is larger than the sum of its proper divisors (210077145).

630231423 is a wasteful number, since it uses less digits than its factorization.

630231423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 210077144.

The product of its (nonzero) digits is 2592, while the sum is 24.

The square root of 630231423 is about 25104.4104292453. The cubic root of 630231423 is about 857.3668436974.

Adding to 630231423 its reverse (324132036), we get a palindrome (954363459).

It can be divided in two parts, 63023 and 1423, that added together give a palindrome (64446).

The spelling of 630231423 in words is "six hundred thirty million, two hundred thirty-one thousand, four hundred twenty-three".