423203240344 has 8 divisors (see below), whose sum is σ = 793506075660. Its totient is φ = 211601620168.

The previous prime is 423203240329. The next prime is 423203240381. The reversal of 423203240344 is 443042302324.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×423203240344² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26450202514 + ... + 26450202529.

Almost surely, 2^423203240344 is an apocalyptic number.

It is an amenable number.

423203240344 is a deficient number, since it is larger than the sum of its proper divisors (370302835316).

423203240344 is a wasteful number, since it uses less digits than its factorization.

423203240344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52900405049 (or 52900405045 counting only the distinct ones).

The product of its (nonzero) digits is 55296, while the sum is 31.

Adding to 423203240344 its reverse (443042302324), we get a palindrome (866245542668).

The spelling of 423203240344 in words is "four hundred twenty-three billion, two hundred three million, two hundred forty thousand, three hundred forty-four".