1331131333 has 8 divisors (see below), whose sum is σ = 1521519552. Its totient is φ = 1140799776.

The previous prime is 1331131327. The next prime is 1331131343. The reversal of 1331131333 is 3331311331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1331131333 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331131313) 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 7 ways as a sum of consecutive naturals, for example, 67866 + ... + 85252.

It is an arithmetic number, because the mean of its divisors is an integer number (190189944).

Almost surely, 2^1331131333 is an apocalyptic number.

It is an amenable number.

1331131333 is a deficient number, since it is larger than the sum of its proper divisors (190388219).

1331131333 is a wasteful number, since it uses less digits than its factorization.

1331131333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28331.

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

The square root of 1331131333 is about 36484.6725763025. The cubic root of 1331131333 is about 1100.0361786999.

Adding to 1331131333 its reverse (3331311331), we get a palindrome (4662442664).

It can be divided in two parts, 13311 and 31333, that added together give a palindrome (44644).

The spelling of 1331131333 in words is "one billion, three hundred thirty-one million, one hundred thirty-one thousand, three hundred thirty-three".