1331433332011 has 8 divisors (see below), whose sum is σ = 1350310535424. Its totient is φ = 1312559590440.

The previous prime is 1331433331933. The next prime is 1331433332063. The reversal of 1331433332011 is 1102333341331.

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

It is a cyclic number.

It is not a de Polignac number, because 1331433332011 - 2⁹ = 1331433331499 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331433332081) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 85861 + ... + 1634086.

It is an arithmetic number, because the mean of its divisors is an integer number (168788816928).

Almost surely, 2^{1331433332011} is an apocalyptic number.

1331433332011 is a deficient number, since it is larger than the sum of its proper divisors (18877203413).

1331433332011 is a wasteful number, since it uses less digits than its factorization.

1331433332011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730921.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 1331433332011 its reverse (1102333341331), we get a palindrome (2433766673342).

The spelling of 1331433332011 in words is "one trillion, three hundred thirty-one billion, four hundred thirty-three million, three hundred thirty-two thousand, eleven".