1331211333 has 16 divisors (see below), whose sum is σ = 1894164480. Its totient is φ = 828688896.

The previous prime is 1331211317. The next prime is 1331211373. The reversal of 1331211333 is 3331121331.

It is not a de Polignac number, because 1331211333 - 2⁴ = 1331211317 is a prime.

It is a super-2 number, since 2×1331211333² = 3544247226215273778, which contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1331211313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 96288 + ... + 109241.

It is an arithmetic number, because the mean of its divisors is an integer number (118385280).

Almost surely, 2^1331211333 is an apocalyptic number.

It is an amenable number.

1331211333 is a deficient number, since it is larger than the sum of its proper divisors (562953147).

1331211333 is a wasteful number, since it uses less digits than its factorization.

1331211333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 205676.

The product of its digits is 486, while the sum is 21.

The square root of 1331211333 is about 36485.7689106314. The cubic root of 1331211333 is about 1100.0582153763.

Adding to 1331211333 its reverse (3331121331), we get a palindrome (4662332664).

The spelling of 1331211333 in words is "one billion, three hundred thirty-one million, two hundred eleven thousand, three hundred thirty-three".