423135120 has 80 divisors (see below), whose sum is σ = 1354056192. Its totient is φ = 109194240.

The previous prime is 423135113. The next prime is 423135121. The reversal of 423135120 is 21531324.

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 (423135121) 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, 20997 + ... + 35876.

Almost surely, 2^423135120 is an apocalyptic number.

423135120 is a gapful number since it is divisible by the number (40) formed by its first and last digit.

It is an amenable number.

423135120 is an abundant number, since it is smaller than the sum of its proper divisors (930921072).

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

423135120 is a wasteful number, since it uses less digits than its factorization.

423135120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56920 (or 56914 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 21.

The square root of 423135120 is about 20570.2484185291. The cubic root of 423135120 is about 750.7459955193.

Adding to 423135120 its reverse (21531324), we get a palindrome (444666444).

The spelling of 423135120 in words is "four hundred twenty-three million, one hundred thirty-five thousand, one hundred twenty".