20020020231 has 8 divisors (see below), whose sum is σ = 26694688240. Its totient is φ = 13346016192.

The previous prime is 20020020227. The next prime is 20020020239. The reversal of 20020020231 is 13202002002.

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

It is not a de Polignac number, because 20020020231 - 2² = 20020020227 is a prime.

It is a super-2 number, since 2×20020020231² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20020020239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 90766 + ... + 219723.

It is an arithmetic number, because the mean of its divisors is an integer number (3336836030).

Almost surely, 2^20020020231 is an apocalyptic number.

20020020231 is a deficient number, since it is larger than the sum of its proper divisors (6674668009).

20020020231 is a wasteful number, since it uses less digits than its factorization.

20020020231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 331985.

The product of its (nonzero) digits is 48, while the sum is 12.

Adding to 20020020231 its reverse (13202002002), we get a palindrome (33222022233).

The spelling of 20020020231 in words is "twenty billion, twenty million, twenty thousand, two hundred thirty-one".