20023020231 has 8 divisors (see below), whose sum is σ = 27858115200. Its totient is φ = 12768302712.

The previous prime is 20023020221. The next prime is 20023020247. The reversal of 20023020231 is 13202032002.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20023020231 - 2⁹ = 20023019719 is a prime.

It is a super-2 number, since 2×20023020231² (a number of 21 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 20023020231.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023020221) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 145094281 + ... + 145094418.

It is an arithmetic number, because the mean of its divisors is an integer number (3482264400).

Almost surely, 2^20023020231 is an apocalyptic number.

20023020231 is a deficient number, since it is larger than the sum of its proper divisors (7835094969).

20023020231 is a wasteful number, since it uses less digits than its factorization.

20023020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 290188725.

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

Adding to 20023020231 its reverse (13202032002), we get a palindrome (33225052233).

The spelling of 20023020231 in words is "twenty billion, twenty-three million, twenty thousand, two hundred thirty-one".