424231231 has 4 divisors (see below), whose sum is σ = 424651032. Its totient is φ = 423811432.

The previous prime is 424231219. The next prime is 424231279. The reversal of 424231231 is 132132424.

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 424231231 - 2⁷ = 424231103 is a prime.

It is a super-2 number, since 2×424231231² = 359944274711550722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (424231201) 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, 208381 + ... + 210406.

It is an arithmetic number, because the mean of its divisors is an integer number (106162758).

Almost surely, 2^424231231 is an apocalyptic number.

424231231 is a deficient number, since it is larger than the sum of its proper divisors (419801).

424231231 is a wasteful number, since it uses less digits than its factorization.

424231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 419800.

The product of its digits is 1152, while the sum is 22.

The square root of 424231231 is about 20596.8743016993. The cubic root of 424231231 is about 751.3936935904.

Adding to 424231231 its reverse (132132424), we get a palindrome (556363655).

The spelling of 424231231 in words is "four hundred twenty-four million, two hundred thirty-one thousand, two hundred thirty-one".