11331131221213 has 8 divisors (see below), whose sum is σ = 11360863641600. Its totient is φ = 11301399568368.

The previous prime is 11331131221199. The next prime is 11331131221217. The reversal of 11331131221213 is 31212213113311.

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 11331131221213 - 2¹⁷ = 11331131090141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11331131221217) 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, 40869268 + ... + 41145586.

It is an arithmetic number, because the mean of its divisors is an integer number (1420107955200).

Almost surely, 2^{11331131221213} is an apocalyptic number.

It is an amenable number.

11331131221213 is a deficient number, since it is larger than the sum of its proper divisors (29732420387).

11331131221213 is a wasteful number, since it uses less digits than its factorization.

11331131221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383771.

The product of its digits is 648, while the sum is 25.

Adding to 11331131221213 its reverse (31212213113311), we get a palindrome (42543344334524).

The spelling of 11331131221213 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, two hundred twenty-one thousand, two hundred thirteen".