13331212011 has 64 divisors (see below), whose sum is σ = 21574425600. Its totient is φ = 8086687488.

The previous prime is 13331212009. The next prime is 13331212067. The reversal of 13331212011 is 11021213331.

It is not a de Polignac number, because 13331212011 - 2¹ = 13331212009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13331222011) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 18336930 + ... + 18337656.

It is an arithmetic number, because the mean of its divisors is an integer number (337100400).

Almost surely, 2^13331212011 is an apocalyptic number.

13331212011 is a deficient number, since it is larger than the sum of its proper divisors (8243213589).

13331212011 is a wasteful number, since it uses less digits than its factorization.

13331212011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1425 (or 1419 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 13331212011 its reverse (11021213331), we get a palindrome (24352425342).

The spelling of 13331212011 in words is "thirteen billion, three hundred thirty-one million, two hundred twelve thousand, eleven".