20121030330 has 16 divisors (see below), whose sum is σ = 48290472864. Its totient is φ = 5365608080.

The previous prime is 20121030329. The next prime is 20121030359. The reversal of 20121030330 is 3303012102.

20121030330 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

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

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 335350476 + ... + 335350535.

It is an arithmetic number, because the mean of its divisors is an integer number (3018154554).

Almost surely, 2^20121030330 is an apocalyptic number.

20121030330 is an abundant number, since it is smaller than the sum of its proper divisors (28169442534).

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

20121030330 is a wasteful number, since it uses less digits than its factorization.

20121030330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 670701021.

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

Adding to 20121030330 its reverse (3303012102), we get a palindrome (23424042432).

It can be divided in two parts, 201210 and 30330, that added together give a triangular number (231540 = T₆₈₀).

The spelling of 20121030330 in words is "twenty billion, one hundred twenty-one million, thirty thousand, three hundred thirty".