2021132018 has 8 divisors (see below), whose sum is σ = 3031888860. Its totient is φ = 1010502400.

The previous prime is 2021131999. The next prime is 2021132041. The reversal of 2021132018 is 8102311202.

It can be written as a sum of positive squares in 2 ways, for example, as 2021131849 + 169 = 44957^2 + 13^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 45218 + ... + 78018.

Almost surely, 2^2021132018 is an apocalyptic number.

2021132018 is a deficient number, since it is larger than the sum of its proper divisors (1010756842).

2021132018 is a wasteful number, since it uses less digits than its factorization.

2021132018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63612.

The product of its (nonzero) digits is 192, while the sum is 20.

The square root of 2021132018 is about 44957.0018795738. The cubic root of 2021132018 is about 1264.3429580145.

The spelling of 2021132018 in words is "two billion, twenty-one million, one hundred thirty-two thousand, eighteen".