30121200330 has 64 divisors (see below), whose sum is σ = 77871870720. Its totient is φ = 7412530176.

The previous prime is 30121200311. The next prime is 30121200367. The reversal of 30121200330 is 3300212103.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon 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, 2033491 + ... + 2048249.

It is an arithmetic number, because the mean of its divisors is an integer number (1216747980).

Almost surely, 2^30121200330 is an apocalyptic number.

30121200330 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

30121200330 is an abundant number, since it is smaller than the sum of its proper divisors (47750670390).

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

30121200330 is a wasteful number, since it uses less digits than its factorization.

30121200330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20015.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 30121200330 its reverse (3300212103), we get a palindrome (33421412433).

The spelling of 30121200330 in words is "thirty billion, one hundred twenty-one million, two hundred thousand, three hundred thirty".