1343430331 has 4 divisors (see below), whose sum is σ = 1351474992. Its totient is φ = 1335385672.

The previous prime is 1343430329. The next prime is 1343430367. The reversal of 1343430331 is 1330343431.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1330343431 = 89 ⋅14947679.

It is a cyclic number.

It is not a de Polignac number, because 1343430331 - 2¹ = 1343430329 is a prime.

It is a super-2 number, since 2×1343430331² = 3609610108501539122, 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 = 1343430296 and 1343430305.

It is not an unprimeable number, because it can be changed into a prime (1343430731) 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, 4022080 + ... + 4022413.

It is an arithmetic number, because the mean of its divisors is an integer number (337868748).

Almost surely, 2^1343430331 is an apocalyptic number.

1343430331 is a deficient number, since it is larger than the sum of its proper divisors (8044661).

1343430331 is an equidigital number, since it uses as much as digits as its factorization.

1343430331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8044660.

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

The square root of 1343430331 is about 36652.8352382186. The cubic root of 1343430331 is about 1103.4137285201.

Adding to 1343430331 its reverse (1330343431), we get a palindrome (2673773762).

The spelling of 1343430331 in words is "one billion, three hundred forty-three million, four hundred thirty thousand, three hundred thirty-one".