2021032105 has 8 divisors (see below), whose sum is σ = 2430180864. Its totient is φ = 1613530800.

The previous prime is 2021032099. The next prime is 2021032129. The reversal of 2021032105 is 5012301202.

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

It is a de Polignac number, because none of the positive numbers 2^k-2021032105 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 409161 + ... + 414070.

It is an arithmetic number, because the mean of its divisors is an integer number (303772608).

Almost surely, 2^2021032105 is an apocalyptic number.

It is an amenable number.

2021032105 is a deficient number, since it is larger than the sum of its proper divisors (409148759).

2021032105 is an equidigital number, since it uses as much as digits as its factorization.

2021032105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 823727.

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 2021032105 is about 44955.8906596232. The cubic root of 2021032105 is about 1264.3221237529.

Adding to 2021032105 its reverse (5012301202), we get a palindrome (7033333307).

The spelling of 2021032105 in words is "two billion, twenty-one million, thirty-two thousand, one hundred five".