1343043331 has 8 divisors (see below), whose sum is σ = 1587834720. Its totient is φ = 1111483968.

The previous prime is 1343043323. The next prime is 1343043337. The reversal of 1343043331 is 1333403431.

It is a happy number.

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

It is not a de Polignac number, because 1343043331 - 2³ = 1343043323 is a prime.

It is a super-2 number, since 2×1343043331² = 3607530777887151122, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1343043296 and 1343043305.

It is not an unprimeable number, because it can be changed into a prime (1343043337) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3307786 + ... + 3308191.

It is an arithmetic number, because the mean of its divisors is an integer number (198479340).

Almost surely, 2^1343043331 is an apocalyptic number.

1343043331 is a deficient number, since it is larger than the sum of its proper divisors (244791389).

1343043331 is an equidigital number, since it uses as much as digits as its factorization.

1343043331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6616013.

The product of its (nonzero) digits is 3888, while the sum is 25.

The square root of 1343043331 is about 36647.5555937910. Note that the first 4 decimals coincide. The cubic root of 1343043331 is about 1103.3077654212.

Adding to 1343043331 its reverse (1333403431), we get a palindrome (2676446762).

The spelling of 1343043331 in words is "one billion, three hundred forty-three million, forty-three thousand, three hundred thirty-one".