1001343 has 16 divisors (see below), whose sum is σ = 1564416. Its totient is φ = 557760.

The previous prime is 1001327. The next prime is 1001347. The reversal of 1001343 is 3431001.

It is not a de Polignac number, because 1001343 - 2⁴ = 1001327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001347) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 280 + ... + 1442.

It is an arithmetic number, because the mean of its divisors is an integer number (97776).

2^1001343 is an apocalyptic number.

1001343 is a deficient number, since it is larger than the sum of its proper divisors (563073).

1001343 is a wasteful number, since it uses less digits than its factorization.

1001343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1214.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 1001343 is about 1000.6712746951. The cubic root of 1001343 is about 100.0447466411.

Adding to 1001343 its reverse (3431001), we get a palindrome (4432344).

It can be divided in two parts, 1001 and 343, that multiplied together give a palindrome (343343).

The spelling of 1001343 in words is "one million, one thousand, three hundred forty-three".