423542121503120 has 80 divisors (see below), whose sum is σ = 1042777405653120. Its totient is φ = 159433357105152.

The previous prime is 423542121503101. The next prime is 423542121503129. The reversal of 423542121503120 is 21305121245324.

It is a tau number, because it is divible by the number of its divisors (80).

It is not an unprimeable number, because it can be changed into a prime (423542121503129) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5183300 + ... + 29562659.

It is an arithmetic number, because the mean of its divisors is an integer number (13034717570664).

Almost surely, 2^{423542121503120} is an apocalyptic number.

423542121503120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423542121503120 is an abundant number, since it is smaller than the sum of its proper divisors (619235284150000).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423542121503120 is a wasteful number, since it uses less digits than its factorization.

423542121503120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34754952 (or 34754946 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 35.

Adding to 423542121503120 its reverse (21305121245324), we get a palindrome (444847242748444).

The spelling of 423542121503120 in words is "four hundred twenty-three trillion, five hundred forty-two billion, one hundred twenty-one million, five hundred three thousand, one hundred twenty".