30120430432 has 24 divisors (see below), whose sum is σ = 59513692896. Its totient is φ = 15005841792.

The previous prime is 30120430429. The next prime is 30120430441. The reversal of 30120430432 is 23403402103.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1690168 + ... + 1707895.

It is an arithmetic number, because the mean of its divisors is an integer number (2479737204).

Almost surely, 2^30120430432 is an apocalyptic number.

30120430432 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

30120430432 is a deficient number, since it is larger than the sum of its proper divisors (29393262464).

30120430432 is a wasteful number, since it uses less digits than its factorization.

30120430432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3398350 (or 3398342 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 30120430432 its reverse (23403402103), we get a palindrome (53523832535).

The spelling of 30120430432 in words is "thirty billion, one hundred twenty million, four hundred thirty thousand, four hundred thirty-two".