423440312141021 has 8 divisors (see below), whose sum is σ = 484068219441600. Its totient is φ = 362846513374848.

The previous prime is 423440312141017. The next prime is 423440312141047. The reversal of 423440312141021 is 120141213044324.

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 423440312141021 - 2² = 423440312141017 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423440312146021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8527106996 + ... + 8527156653.

It is an arithmetic number, because the mean of its divisors is an integer number (60508527430200).

Almost surely, 2^{423440312141021} is an apocalyptic number.

It is an amenable number.

423440312141021 is a deficient number, since it is larger than the sum of its proper divisors (60627907300579).

423440312141021 is a wasteful number, since it uses less digits than its factorization.

423440312141021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17054267203.

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 423440312141021 its reverse (120141213044324), we get a palindrome (543581525185345).

The spelling of 423440312141021 in words is "four hundred twenty-three trillion, four hundred forty billion, three hundred twelve million, one hundred forty-one thousand, twenty-one".