1042021343 has 16 divisors (see below), whose sum is σ = 1179079200. Its totient is φ = 912528000.

The previous prime is 1042021327. The next prime is 1042021381. The reversal of 1042021343 is 3431202401.

It is a cyclic number.

It is not a de Polignac number, because 1042021343 - 2⁴ = 1042021327 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1042021843) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 28433 + ... + 53781.

It is an arithmetic number, because the mean of its divisors is an integer number (73692450).

Almost surely, 2^1042021343 is an apocalyptic number.

1042021343 is a deficient number, since it is larger than the sum of its proper divisors (137057857).

1042021343 is a wasteful number, since it uses less digits than its factorization.

1042021343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25498.

The product of its (nonzero) digits is 576, while the sum is 20.

The square root of 1042021343 is about 32280.3553728889. The cubic root of 1042021343 is about 1013.8153709056.

Adding to 1042021343 its reverse (3431202401), we get a palindrome (4473223744).

The spelling of 1042021343 in words is "one billion, forty-two million, twenty-one thousand, three hundred forty-three".