2021431142 has 8 divisors (see below), whose sum is σ = 3039384600. Its totient is φ = 1008302944.

The previous prime is 2021431133. The next prime is 2021431157. The reversal of 2021431142 is 2411341202.

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

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, 1205267 + ... + 1206942.

It is an arithmetic number, because the mean of its divisors is an integer number (379923075).

Almost surely, 2^2021431142 is an apocalyptic number.

2021431142 is a deficient number, since it is larger than the sum of its proper divisors (1017953458).

2021431142 is a wasteful number, since it uses less digits than its factorization.

2021431142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2412630.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2021431142 is about 44960.3285352765. The cubic root of 2021431142 is about 1264.4053284524.

Adding to 2021431142 its reverse (2411341202), we get a palindrome (4432772344).

The spelling of 2021431142 in words is "two billion, twenty-one million, four hundred thirty-one thousand, one hundred forty-two".