423320444121231 has 8 divisors (see below), whose sum is σ = 627141398698160. Its totient is φ = 282213629414136.

The previous prime is 423320444121227. The next prime is 423320444121319. The reversal of 423320444121231 is 132121444023324.

423320444121231 is a `hidden beast` number, since 4 + 2 + 3 + 3 + 2 + 0 + 4 + 4 + 412 + 1 + 231 = 666.

It is not a de Polignac number, because 423320444121231 - 2² = 423320444121227 is a prime.

It is a super-4 number, since 4×423320444121231⁴ (a number of 60 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423320444121931) 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, 7839267483700 + ... + 7839267483753.

It is an arithmetic number, because the mean of its divisors is an integer number (78392674837270).

Almost surely, 2^{423320444121231} is an apocalyptic number.

423320444121231 is a deficient number, since it is larger than the sum of its proper divisors (203820954576929).

423320444121231 is a wasteful number, since it uses less digits than its factorization.

423320444121231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15678534967462 (or 15678534967456 counting only the distinct ones).

The product of its (nonzero) digits is 110592, while the sum is 36.

Adding to 423320444121231 its reverse (132121444023324), we get a palindrome (555441888144555).

The spelling of 423320444121231 in words is "four hundred twenty-three trillion, three hundred twenty billion, four hundred forty-four million, one hundred twenty-one thousand, two hundred thirty-one".