1121343 has 8 divisors (see below), whose sum is σ = 1546800. Its totient is φ = 721728.

The previous prime is 1121333. The next prime is 1121347. The reversal of 1121343 is 3431211.

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

It is not a de Polignac number, because 1121343 - 2⁹ = 1120831 is a prime.

1121343 is a lucky number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121347) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6358 + ... + 6531.

It is an arithmetic number, because the mean of its divisors is an integer number (193350).

2^1121343 is an apocalyptic number.

1121343 is a deficient number, since it is larger than the sum of its proper divisors (425457).

1121343 is a wasteful number, since it uses less digits than its factorization.

1121343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12921.

The product of its digits is 72, while the sum is 15.

The square root of 1121343 is about 1058.9348421881. The cubic root of 1121343 is about 103.8913745019.

Adding to 1121343 its reverse (3431211), we get a palindrome (4552554).

The spelling of 1121343 in words is "one million, one hundred twenty-one thousand, three hundred forty-three".