30120023232 has 224 divisors, whose sum is σ = 95585280000. Its totient is φ = 9245684736.

The previous prime is 30120023147. The next prime is 30120023257. The reversal of 30120023232 is 23232002103.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 11208193 + ... + 11210879.

It is an arithmetic number, because the mean of its divisors is an integer number (426720000).

Almost surely, 2^30120023232 is an apocalyptic number.

30120023232 is a gapful number since it is divisible by the number (32) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30120023232, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47792640000).

30120023232 is an abundant number, since it is smaller than the sum of its proper divisors (65465256768).

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

30120023232 is a wasteful number, since it uses less digits than its factorization.

30120023232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3220 (or 3204 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 30120023232 its reverse (23232002103), we get a palindrome (53352025335).

The spelling of 30120023232 in words is "thirty billion, one hundred twenty million, twenty-three thousand, two hundred thirty-two".