423120012 has 48 divisors (see below), whose sum is σ = 1158823680. Its totient is φ = 117623232.

The previous prime is 423119999. The next prime is 423120017. The reversal of 423120012 is 210021324.

It is a junction number, because it is equal to n+sod(n) for n = 423119973 and 423120000.

It is not an unprimeable number, because it can be changed into a prime (423120017) 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, 64962 + ... + 71177.

It is an arithmetic number, because the mean of its divisors is an integer number (24142160).

Almost surely, 2^423120012 is an apocalyptic number.

423120012 is a gapful number since it is divisible by the number (42) formed by its first and last digit.

It is an amenable number.

423120012 is an abundant number, since it is smaller than the sum of its proper divisors (735703668).

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

423120012 is a wasteful number, since it uses less digits than its factorization.

423120012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 136190 (or 136188 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 423120012 is about 20569.8811858503. The cubic root of 423120012 is about 750.7370603077.

Adding to 423120012 its reverse (210021324), we get a palindrome (633141336).

The spelling of 423120012 in words is "four hundred twenty-three million, one hundred twenty thousand, twelve".