1331361326 has 8 divisors (see below), whose sum is σ = 2003342760. Its totient is φ = 663580408.

The previous prime is 1331361323. The next prime is 1331361337. The reversal of 1331361326 is 6231631331.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331361323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1049336 + ... + 1050603.

It is an arithmetic number, because the mean of its divisors is an integer number (250417845).

Almost surely, 2^1331361326 is an apocalyptic number.

1331361326 is a deficient number, since it is larger than the sum of its proper divisors (671981434).

1331361326 is a wasteful number, since it uses less digits than its factorization.

1331361326 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2100258.

The product of its digits is 5832, while the sum is 29.

The square root of 1331361326 is about 36487.8243527892. The cubic root of 1331361326 is about 1100.0995298371.

Adding to 1331361326 its reverse (6231631331), we get a palindrome (7562992657).

The spelling of 1331361326 in words is "one billion, three hundred thirty-one million, three hundred sixty-one thousand, three hundred twenty-six".