2020213231 has 4 divisors (see below), whose sum is σ = 2020304464. Its totient is φ = 2020122000.

The previous prime is 2020213199. The next prime is 2020213249. The reversal of 2020213231 is 1323120202.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 2020213231 - 2⁵ = 2020213199 is a prime.

It is a super-2 number, since 2×2020213231² = 8162522997414918722, which 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 (2020213271) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11131 + ... + 64531.

It is an arithmetic number, because the mean of its divisors is an integer number (505076116).

Almost surely, 2^2020213231 is an apocalyptic number.

2020213231 is a deficient number, since it is larger than the sum of its proper divisors (91233).

2020213231 is an equidigital number, since it uses as much as digits as its factorization.

2020213231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 91232.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 2020213231 is about 44946.7822096310. The cubic root of 2020213231 is about 1264.1513429634.

Adding to 2020213231 its reverse (1323120202), we get a palindrome (3343333433).

It can be divided in two parts, 20202 and 13231, that added together give a palindrome (33433).

The spelling of 2020213231 in words is "two billion, twenty million, two hundred thirteen thousand, two hundred thirty-one".