20123028330 has 16 divisors (see below), whose sum is σ = 48295268064. Its totient is φ = 5366140880.

The previous prime is 20123028319. The next prime is 20123028337. The reversal of 20123028330 is 3382032102.

20123028330 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 20123028330.

It is not an unprimeable number, because it can be changed into a prime (20123028337) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 335383776 + ... + 335383835.

It is an arithmetic number, because the mean of its divisors is an integer number (3018454254).

Almost surely, 2^20123028330 is an apocalyptic number.

20123028330 is an abundant number, since it is smaller than the sum of its proper divisors (28172239734).

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

20123028330 is a wasteful number, since it uses less digits than its factorization.

20123028330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 670767621.

The product of its (nonzero) digits is 1728, while the sum is 24.

The spelling of 20123028330 in words is "twenty billion, one hundred twenty-three million, twenty-eight thousand, three hundred thirty".