30121330272 has 192 divisors, whose sum is σ = 88684098048. Its totient is φ = 8872448000.

The previous prime is 30121330247. The next prime is 30121330273. The reversal of 30121330272 is 27203312103.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (30121330273) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 13463938 + ... + 13466174.

It is an arithmetic number, because the mean of its divisors is an integer number (461896344).

Almost surely, 2^30121330272 is an apocalyptic number.

30121330272 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 30121330272, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (44342049024).

30121330272 is an abundant number, since it is smaller than the sum of its proper divisors (58562767776).

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

30121330272 is a wasteful number, since it uses less digits than its factorization.

30121330272 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2613 (or 2605 counting only the distinct ones).

The product of its (nonzero) digits is 1512, while the sum is 24.

Adding to 30121330272 its reverse (27203312103), we get a palindrome (57324642375).

The spelling of 30121330272 in words is "thirty billion, one hundred twenty-one million, three hundred thirty thousand, two hundred seventy-two".