2021021342 has 8 divisors (see below), whose sum is σ = 3031753536. Its totient is φ = 1010436832.

The previous prime is 2021021329. The next prime is 2021021351. The reversal of 2021021342 is 2431201202.

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

It is a self number, because there is not a number n which added to its sum of digits gives 2021021342.

It is a congruent number.

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, 8438 + ... + 64134.

It is an arithmetic number, because the mean of its divisors is an integer number (378969192).

Almost surely, 2^2021021342 is an apocalyptic number.

2021021342 is a deficient number, since it is larger than the sum of its proper divisors (1010732194).

2021021342 is a wasteful number, since it uses less digits than its factorization.

2021021342 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 73842.

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

The square root of 2021021342 is about 44955.7709532380. The cubic root of 2021021342 is about 1264.3198793678.

Adding to 2021021342 its reverse (2431201202), we get a palindrome (4452222544).

The spelling of 2021021342 in words is "two billion, twenty-one million, twenty-one thousand, three hundred forty-two".