423245321551 has 8 divisors (see below), whose sum is σ = 455810642784. Its totient is φ = 390681141600.

The previous prime is 423245321459. The next prime is 423245321561. The reversal of 423245321551 is 155123542324.

It is a happy number.

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 423245321551 - 2⁹ = 423245321039 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 423245321551.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423245321561) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 582750 + ... + 1089076.

It is an arithmetic number, because the mean of its divisors is an integer number (56976330348).

Almost surely, 2^423245321551 is an apocalyptic number.

423245321551 is a deficient number, since it is larger than the sum of its proper divisors (32565321233).

423245321551 is a wasteful number, since it uses less digits than its factorization.

423245321551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 570641.

The product of its digits is 144000, while the sum is 37.

Adding to 423245321551 its reverse (155123542324), we get a palindrome (578368863875).

The spelling of 423245321551 in words is "four hundred twenty-three billion, two hundred forty-five million, three hundred twenty-one thousand, five hundred fifty-one".