20023021230 has 32 divisors (see below), whose sum is σ = 48058972704. Its totient is φ = 5339058816.

The previous prime is 20023021229. The next prime is 20023021231. The reversal of 20023021230 is 3212032002.

It is an interprime number because it is at equal distance from previous prime (20023021229) and next prime (20023021231).

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023021231) 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 15 ways as a sum of consecutive naturals, for example, 740224 + ... + 766796.

It is an arithmetic number, because the mean of its divisors is an integer number (1501842897).

Almost surely, 2^20023021230 is an apocalyptic number.

20023021230 is an abundant number, since it is smaller than the sum of its proper divisors (28035951474).

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

20023021230 is a wasteful number, since it uses less digits than its factorization.

20023021230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51700.

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 20023021230 its reverse (3212032002), we get a palindrome (23235053232).

The spelling of 20023021230 in words is "twenty billion, twenty-three million, twenty-one thousand, two hundred thirty".