20333142330 has 32 divisors (see below), whose sum is σ = 48817923264. Its totient is φ = 5420128896.

The previous prime is 20333142311. The next prime is 20333142359. The reversal of 20333142330 is 3324133302.

It is a happy number.

It is a self number, because there is not a number n which added to its sum of digits gives 20333142330.

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 15 ways as a sum of consecutive naturals, for example, 45819 + ... + 206798.

It is an arithmetic number, because the mean of its divisors is an integer number (1525560102).

Almost surely, 2^20333142330 is an apocalyptic number.

20333142330 is an abundant number, since it is smaller than the sum of its proper divisors (28484780934).

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

20333142330 is a wasteful number, since it uses less digits than its factorization.

20333142330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 255310.

The product of its (nonzero) digits is 3888, while the sum is 24.

Adding to 20333142330 its reverse (3324133302), we get a palindrome (23657275632).

The spelling of 20333142330 in words is "twenty billion, three hundred thirty-three million, one hundred forty-two thousand, three hundred thirty".