1043341021 has 4 divisors (see below), whose sum is σ = 1054097212. Its totient is φ = 1032584832.

The previous prime is 1043341007. The next prime is 1043341027. The reversal of 1043341021 is 1201433401.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 243016921 + 800324100 = 15589^2 + 28290^2 .

It is a cyclic number.

It is not a de Polignac number, because 1043341021 - 2⁹ = 1043340509 is a prime.

It is a super-2 number, since 2×1043341021² = 2177120972202644882, which contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1043341021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1043341027) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 5377950 + ... + 5378143.

It is an arithmetic number, because the mean of its divisors is an integer number (263524303).

Almost surely, 2^1043341021 is an apocalyptic number.

It is an amenable number.

1043341021 is a deficient number, since it is larger than the sum of its proper divisors (10756191).

1043341021 is an equidigital number, since it uses as much as digits as its factorization.

1043341021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10756190.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 1043341021 is about 32300.7897891058. The cubic root of 1043341021 is about 1014.2431757819.

Adding to 1043341021 its reverse (1201433401), we get a palindrome (2244774422).

The spelling of 1043341021 in words is "one billion, forty-three million, three hundred forty-one thousand, twenty-one".