1343203403 has 4 divisors (see below), whose sum is σ = 1355526480. Its totient is φ = 1330880328.

The previous prime is 1343203399. The next prime is 1343203417. The reversal of 1343203403 is 3043023431.

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 1343203403 - 2² = 1343203399 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343203453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6161375 + ... + 6161592.

It is an arithmetic number, because the mean of its divisors is an integer number (338881620).

Almost surely, 2^1343203403 is an apocalyptic number.

1343203403 is a deficient number, since it is larger than the sum of its proper divisors (12323077).

1343203403 is a wasteful number, since it uses less digits than its factorization.

1343203403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12323076.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 1343203403 is about 36649.7394670140. The cubic root of 1343203403 is about 1103.3515966366.

Adding to 1343203403 its reverse (3043023431), we get a palindrome (4386226834).

The spelling of 1343203403 in words is "one billion, three hundred forty-three million, two hundred three thousand, four hundred three".