423133512 has 16 divisors (see below), whose sum is σ = 1057833840. Its totient is φ = 141044496.

The previous prime is 423133511. The next prime is 423133523. The reversal of 423133512 is 215331324.

It is a Harshad number since it is a multiple of its sum of digits (24), and also a Moran number because the ratio is a prime number: 17630563 = 423133512 / (4 + 2 + 3 + 1 + 3 + 3 + 5 + 1 + 2).

It is not an unprimeable number, because it can be changed into a prime (423133511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8815258 + ... + 8815305.

It is an arithmetic number, because the mean of its divisors is an integer number (66114615).

Almost surely, 2^423133512 is an apocalyptic number.

It is an amenable number.

423133512 is an abundant number, since it is smaller than the sum of its proper divisors (634700328).

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

423133512 is a wasteful number, since it uses less digits than its factorization.

423133512 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17630572 (or 17630568 counting only the distinct ones).

The product of its digits is 2160, while the sum is 24.

The square root of 423133512 is about 20570.2093329164. The cubic root of 423133512 is about 750.7450445220.

Adding to 423133512 its reverse (215331324), we get a palindrome (638464836).

The spelling of 423133512 in words is "four hundred twenty-three million, one hundred thirty-three thousand, five hundred twelve".