1331113333 has 4 divisors (see below), whose sum is σ = 1452123648. Its totient is φ = 1210103020.

The previous prime is 1331113283. The next prime is 1331113349. The reversal of 1331113333 is 3333111331.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331113333 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331114333) 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, 60505141 + ... + 60505162.

It is an arithmetic number, because the mean of its divisors is an integer number (363030912).

Almost surely, 2^1331113333 is an apocalyptic number.

It is an amenable number.

1331113333 is a deficient number, since it is larger than the sum of its proper divisors (121010315).

1331113333 is a wasteful number, since it uses less digits than its factorization.

1331113333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 121010314.

The product of its digits is 729, while the sum is 22.

The square root of 1331113333 is about 36484.4258965384. The cubic root of 1331113333 is about 1100.0312203260.

Adding to 1331113333 its reverse (3333111331), we get a palindrome (4664224664).

The spelling of 1331113333 in words is "one billion, three hundred thirty-one million, one hundred thirteen thousand, three hundred thirty-three".