2021142330 has 48 divisors (see below), whose sum is σ = 5377188960. Its totient is φ = 526436064.

The previous prime is 2021142289. The next prime is 2021142349. The reversal of 2021142330 is 332411202.

2021142330 is a `hidden beast` number, since 2 + 0 + 211 + 423 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 257260 + ... + 264999.

It is an arithmetic number, because the mean of its divisors is an integer number (112024770).

Almost surely, 2^2021142330 is an apocalyptic number.

2021142330 is an abundant number, since it is smaller than the sum of its proper divisors (3356046630).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2021142330 is a wasteful number, since it uses less digits than its factorization.

2021142330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 522315 (or 522312 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 2021142330 is about 44957.1165667906. The cubic root of 2021142330 is about 1264.3451082752.

Adding to 2021142330 its reverse (332411202), we get a palindrome (2353553532).

The spelling of 2021142330 in words is "two billion, twenty-one million, one hundred forty-two thousand, three hundred thirty".