1343331403 has 4 divisors (see below), whose sum is σ = 1352347200. Its totient is φ = 1334315608.

The previous prime is 1343331383. The next prime is 1343331419. The reversal of 1343331403 is 3041333431.

It is a happy number.

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 1343331403 - 2⁵ = 1343331371 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1343331433) 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, 4507675 + ... + 4507972.

It is an arithmetic number, because the mean of its divisors is an integer number (338086800).

Almost surely, 2^1343331403 is an apocalyptic number.

1343331403 is a deficient number, since it is larger than the sum of its proper divisors (9015797).

1343331403 is an equidigital number, since it uses as much as digits as its factorization.

1343331403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9015796.

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

The square root of 1343331403 is about 36651.4856861219. The cubic root of 1343331403 is about 1103.3866433312.

Adding to 1343331403 its reverse (3041333431), we get a palindrome (4384664834).

The spelling of 1343331403 in words is "one billion, three hundred forty-three million, three hundred thirty-one thousand, four hundred three".