2021801230 has 8 divisors (see below), whose sum is σ = 3639242232. Its totient is φ = 808720488.

The previous prime is 2021801189. The next prime is 2021801231. The reversal of 2021801230 is 321081202.

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

It is a junction number, because it is equal to n+sod(n) for n = 2021801198 and 2021801207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2021801231) 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, 101090052 + ... + 101090071.

It is an arithmetic number, because the mean of its divisors is an integer number (454905279).

Almost surely, 2^2021801230 is an apocalyptic number.

2021801230 is a deficient number, since it is larger than the sum of its proper divisors (1617441002).

2021801230 is a wasteful number, since it uses less digits than its factorization.

2021801230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 202180130.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 2021801230 is about 44964.4440641714. Note that the first 3 decimals coincide. The cubic root of 2021801230 is about 1264.4824871009.

Adding to 2021801230 its reverse (321081202), we get a palindrome (2342882432).

The spelling of 2021801230 in words is "two billion, twenty-one million, eight hundred one thousand, two hundred thirty".