1331013331211 has 4 divisors (see below), whose sum is σ = 1343224462800. Its totient is φ = 1318802199624.

The previous prime is 1331013331201. The next prime is 1331013331217. The reversal of 1331013331211 is 1121333101331.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1331013331211 - 2²² = 1331009136907 is a prime.

It is a super-2 number, since 2×1331013331211² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1331013331217) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6105565631 + ... + 6105565848.

It is an arithmetic number, because the mean of its divisors is an integer number (335806115700).

Almost surely, 2^{1331013331211} is an apocalyptic number.

1331013331211 is a deficient number, since it is larger than the sum of its proper divisors (12211131589).

1331013331211 is a wasteful number, since it uses less digits than its factorization.

1331013331211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12211131588.

The product of its (nonzero) digits is 486, while the sum is 23.

Adding to 1331013331211 its reverse (1121333101331), we get a palindrome (2452346432542).

The spelling of 1331013331211 in words is "one trillion, three hundred thirty-one billion, thirteen million, three hundred thirty-one thousand, two hundred eleven".