423500371221 has 8 divisors (see below), whose sum is σ = 573095029984. Its totient is φ = 278119646640.

The previous prime is 423500371211. The next prime is 423500371241. The reversal of 423500371221 is 122173005324.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 423500371221 - 2¹⁸ = 423500109077 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 (423500371201) 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, 1053483310 + ... + 1053483711.

It is an arithmetic number, because the mean of its divisors is an integer number (71636878748).

Almost surely, 2^423500371221 is an apocalyptic number.

It is an amenable number.

423500371221 is a deficient number, since it is larger than the sum of its proper divisors (149594658763).

423500371221 is a wasteful number, since it uses less digits than its factorization.

423500371221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106967091.

The product of its (nonzero) digits is 10080, while the sum is 30.

Adding to 423500371221 its reverse (122173005324), we get a palindrome (545673376545).

The spelling of 423500371221 in words is "four hundred twenty-three billion, five hundred million, three hundred seventy-one thousand, two hundred twenty-one".