30000020232 has 128 divisors (see below), whose sum is σ = 93685939200. Its totient is φ = 7793964288.

The previous prime is 30000020191. The next prime is 30000020233. The reversal of 30000020232 is 23202000003.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is not an unprimeable number, because it can be changed into a prime (30000020233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 43819 + ... + 248837.

It is an arithmetic number, because the mean of its divisors is an integer number (731921400).

Almost surely, 2^30000020232 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30000020232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (46842969600).

30000020232 is an abundant number, since it is smaller than the sum of its proper divisors (63685918968).

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

30000020232 is a wasteful number, since it uses less digits than its factorization.

30000020232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205115 (or 205111 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 12.

Adding to 30000020232 its reverse (23202000003), we get a palindrome (53202020235).

The spelling of 30000020232 in words is "thirty billion, twenty thousand, two hundred thirty-two".