30121330302 has 128 divisors (see below), whose sum is σ = 77988556800. Its totient is φ = 8440015968.

The previous prime is 30121330297. The next prime is 30121330321. The reversal of 30121330302 is 20303312103.

30121330302 is a `hidden beast` number, since 30 + 1 + 2 + 1 + 330 + 302 = 666.

It is a super-2 number, since 2×30121330302² (a number of 22 digits) contains 22 as substring.

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

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 4357533 + ... + 4364439.

It is an arithmetic number, because the mean of its divisors is an integer number (609285600).

Almost surely, 2^30121330302 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 30121330302, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38994278400).

30121330302 is an abundant number, since it is smaller than the sum of its proper divisors (47867226498).

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

30121330302 is a wasteful number, since it uses less digits than its factorization.

30121330302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7147 (or 7141 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 30121330302 its reverse (20303312103), we get a palindrome (50424642405).

The spelling of 30121330302 in words is "thirty billion, one hundred twenty-one million, three hundred thirty thousand, three hundred two".