1020343 has 8 divisors (see below), whose sum is σ = 1052912. Its totient is φ = 988416.

The previous prime is 1020337. The next prime is 1020353. The reversal of 1020343 is 3430201.

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

It is a cyclic number.

It is not a de Polignac number, because 1020343 - 2¹⁷ = 889271 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 (1020353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6421 + ... + 6577.

It is an arithmetic number, because the mean of its divisors is an integer number (131614).

2^1020343 is an apocalyptic number.

1020343 is a deficient number, since it is larger than the sum of its proper divisors (32569).

1020343 is an equidigital number, since it uses as much as digits as its factorization.

1020343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 321.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 1020343 is about 1010.1202898665. The cubic root of 1020343 is about 100.6735530767.

Adding to 1020343 its reverse (3430201), we get a palindrome (4450544).

The spelling of 1020343 in words is "one million, twenty thousand, three hundred forty-three".