1043311343 has 4 divisors (see below), whose sum is σ = 1050817320. Its totient is φ = 1035805368.

The previous prime is 1043311309. The next prime is 1043311363. The reversal of 1043311343 is 3431133401.

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

It is a cyclic number.

It is not a de Polignac number, because 1043311343 - 2¹² = 1043307247 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 (1043311363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3752780 + ... + 3753057.

It is an arithmetic number, because the mean of its divisors is an integer number (262704330).

Almost surely, 2^1043311343 is an apocalyptic number.

1043311343 is a deficient number, since it is larger than the sum of its proper divisors (7505977).

1043311343 is an equidigital number, since it uses as much as digits as its factorization.

1043311343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7505976.

The product of its (nonzero) digits is 1296, while the sum is 23.

The square root of 1043311343 is about 32300.3303853072. The cubic root of 1043311343 is about 1014.2335589216.

Adding to 1043311343 its reverse (3431133401), we get a palindrome (4474444744).

The spelling of 1043311343 in words is "one billion, forty-three million, three hundred eleven thousand, three hundred forty-three".