12011031331311 has 32 divisors (see below), whose sum is σ = 17332125465600. Its totient is φ = 7369770146816.

The previous prime is 12011031331309. The next prime is 12011031331361. The reversal of 12011031331311 is 11313313011021.

It is a cyclic number.

It is not a de Polignac number, because 12011031331311 - 2¹ = 12011031331309 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12011031331361) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 734515 + ... + 4955963.

It is an arithmetic number, because the mean of its divisors is an integer number (541628920800).

Almost surely, 2^{12011031331311} is an apocalyptic number.

12011031331311 is a deficient number, since it is larger than the sum of its proper divisors (5321094134289).

12011031331311 is a wasteful number, since it uses less digits than its factorization.

12011031331311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4222703.

The product of its (nonzero) digits is 162, while the sum is 21.

Adding to 12011031331311 its reverse (11313313011021), we get a palindrome (23324344342332).

The spelling of 12011031331311 in words is "twelve trillion, eleven billion, thirty-one million, three hundred thirty-one thousand, three hundred eleven".