30442121332 has 96 divisors (see below), whose sum is σ = 63541739520. Its totient is φ = 12489759360.

The previous prime is 30442121327. The next prime is 30442121341. The reversal of 30442121332 is 23312124403.

It is a junction number, because it is equal to n+sod(n) for n = 30442121297 and 30442121306.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 35274333 + ... + 35275195.

It is an arithmetic number, because the mean of its divisors is an integer number (661893120).

Almost surely, 2^30442121332 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 30442121332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31770869760).

30442121332 is an abundant number, since it is smaller than the sum of its proper divisors (33099618188).

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

30442121332 is a wasteful number, since it uses less digits than its factorization.

30442121332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1421 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 30442121332 its reverse (23312124403), we get a palindrome (53754245735).

The spelling of 30442121332 in words is "thirty billion, four hundred forty-two million, one hundred twenty-one thousand, three hundred thirty-two".