423443340231 has 4 divisors (see below), whose sum is σ = 564591120312. Its totient is φ = 282295560152.

The previous prime is 423443340179. The next prime is 423443340247. The reversal of 423443340231 is 132043344324.

It is a happy number.

423443340231 is digitally balanced in base 4, 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 423443340231 - 2⁶ = 423443340167 is a prime.

It is a super-2 number, since 2×423443340231² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 423443340192 and 423443340201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423443340251) 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, 70573890036 + ... + 70573890041.

It is an arithmetic number, because the mean of its divisors is an integer number (141147780078).

Almost surely, 2^423443340231 is an apocalyptic number.

423443340231 is a deficient number, since it is larger than the sum of its proper divisors (141147780081).

423443340231 is a wasteful number, since it uses less digits than its factorization.

423443340231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 141147780080.

The product of its (nonzero) digits is 82944, while the sum is 33.

Adding to 423443340231 its reverse (132043344324), we get a palindrome (555486684555).

The spelling of 423443340231 in words is "four hundred twenty-three billion, four hundred forty-three million, three hundred forty thousand, two hundred thirty-one".