1331223113333 has 4 divisors (see below), whose sum is σ = 1331583199020. Its totient is φ = 1330863027648.

The previous prime is 1331223113309. The next prime is 1331223113359. The reversal of 1331223113333 is 3333113221331.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 695277471889 + 635945641444 = 833833^2 + 797462^2 .

It is a cyclic number.

It is not a de Polignac number, because 1331223113333 - 2¹⁰ = 1331223112309 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1331223113296 and 1331223113305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331223113383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 180037298 + ... + 180044691.

It is an arithmetic number, because the mean of its divisors is an integer number (332895799755).

Almost surely, 2^{1331223113333} is an apocalyptic number.

It is an amenable number.

1331223113333 is a deficient number, since it is larger than the sum of its proper divisors (360085687).

1331223113333 is an equidigital number, since it uses as much as digits as its factorization.

1331223113333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 360085686.

The product of its digits is 8748, while the sum is 29.

Adding to 1331223113333 its reverse (3333113221331), we get a palindrome (4664336334664).

The spelling of 1331223113333 in words is "one trillion, three hundred thirty-one billion, two hundred twenty-three million, one hundred thirteen thousand, three hundred thirty-three".