2020231421 has 8 divisors (see below), whose sum is σ = 2191287840. Its totient is φ = 1851411312.

The previous prime is 2020231403. The next prime is 2020231439. The reversal of 2020231421 is 1241320202.

It is an interprime number because it is at equal distance from previous prime (2020231403) and next prime (2020231439).

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

It is a cyclic number.

It is not a de Polignac number, because 2020231421 - 2³⁰ = 946489597 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2020231421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2020233421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 557195 + ... + 560808.

It is an arithmetic number, because the mean of its divisors is an integer number (273910980).

Almost surely, 2^2020231421 is an apocalyptic number.

It is an amenable number.

2020231421 is a deficient number, since it is larger than the sum of its proper divisors (171056419).

2020231421 is a wasteful number, since it uses less digits than its factorization.

2020231421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1118155.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 2020231421 is about 44946.9845595898. The cubic root of 2020231421 is about 1264.1551370916.

Adding to 2020231421 its reverse (1241320202), we get a palindrome (3261551623).

The spelling of 2020231421 in words is "two billion, twenty million, two hundred thirty-one thousand, four hundred twenty-one".