423120030 has 32 divisors (see below), whose sum is σ = 1017007488. Its totient is φ = 112663200.

The previous prime is 423120017. The next prime is 423120067. The reversal of 423120030 is 30021324.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a junction number, because it is equal to n+sod(n) for n = 423119991 and 423120009.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10525 + ... + 30935.

It is an arithmetic number, because the mean of its divisors is an integer number (31781484).

Almost surely, 2^423120030 is an apocalyptic number.

423120030 is an abundant number, since it is smaller than the sum of its proper divisors (593887458).

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

423120030 is a wasteful number, since it uses less digits than its factorization.

423120030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21112.

The product of its (nonzero) digits is 144, while the sum is 15.

The square root of 423120030 is about 20569.8816233833. The cubic root of 423120030 is about 750.7370709535.

Adding to 423120030 its reverse (30021324), we get a palindrome (453141354).

The spelling of 423120030 in words is "four hundred twenty-three million, one hundred twenty thousand, thirty".