30121433132 has 96 divisors (see below), whose sum is σ = 63909457920. Its totient is φ = 12148416000.

The previous prime is 30121433129. The next prime is 30121433203. The reversal of 30121433132 is 23133412103.

It is a junction number, because it is equal to n+sod(n) for n = 30121433098 and 30121433107.

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, 10035632 + ... + 10038632.

It is an arithmetic number, because the mean of its divisors is an integer number (665723520).

Almost surely, 2^30121433132 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 30121433132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31954728960).

30121433132 is an abundant number, since it is smaller than the sum of its proper divisors (33788024788).

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

30121433132 is a wasteful number, since it uses less digits than its factorization.

30121433132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3351 (or 3349 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 30121433132 its reverse (23133412103), we get a palindrome (53254845235).

The spelling of 30121433132 in words is "thirty billion, one hundred twenty-one million, four hundred thirty-three thousand, one hundred thirty-two".