2021351242 has 8 divisors (see below), whose sum is σ = 3041904096. Its totient is φ = 1007383212.

The previous prime is 2021351173. The next prime is 2021351351. The reversal of 2021351242 is 2421531202.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1645438 + ... + 1646665.

It is an arithmetic number, because the mean of its divisors is an integer number (380238012).

Almost surely, 2^2021351242 is an apocalyptic number.

2021351242 is a deficient number, since it is larger than the sum of its proper divisors (1020552854).

2021351242 is a wasteful number, since it uses less digits than its factorization.

2021351242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3292412.

The product of its (nonzero) digits is 960, while the sum is 22.

The square root of 2021351242 is about 44959.4399653732. The cubic root of 2021351242 is about 1264.3886690810.

Adding to 2021351242 its reverse (2421531202), we get a palindrome (4442882444).

The spelling of 2021351242 in words is "two billion, twenty-one million, three hundred fifty-one thousand, two hundred forty-two".