631232423 has 8 divisors (see below), whose sum is σ = 668608992. Its totient is φ = 593883136.

The previous prime is 631232377. The next prime is 631232429. The reversal of 631232423 is 324232136.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 631232423 - 2⁶ = 631232359 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 631232392 and 631232401.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (631232429) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 59111 + ... + 68967.

It is an arithmetic number, because the mean of its divisors is an integer number (83576124).

Almost surely, 2^631232423 is an apocalyptic number.

631232423 is a deficient number, since it is larger than the sum of its proper divisors (37376569).

631232423 is a wasteful number, since it uses less digits than its factorization.

631232423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13641.

The product of its digits is 5184, while the sum is 26.

The square root of 631232423 is about 25124.3392549934. The cubic root of 631232423 is about 857.8205237297.

Adding to 631232423 its reverse (324232136), we get a palindrome (955464559).

The spelling of 631232423 in words is "six hundred thirty-one million, two hundred thirty-two thousand, four hundred twenty-three".