12031021310311 has 16 divisors (see below), whose sum is σ = 12767171155200. Its totient is φ = 11312635200768.

The previous prime is 12031021310299. The next prime is 12031021310327. The reversal of 12031021310311 is 11301312013021.

It is a cyclic number.

It is not a de Polignac number, because 12031021310311 - 2⁵ = 12031021310279 is a prime.

It is a super-2 number, since 2×12031021310311² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031021310381) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 98385175 + ... + 98507383.

It is an arithmetic number, because the mean of its divisors is an integer number (797948197200).

Almost surely, 2^{12031021310311} is an apocalyptic number.

12031021310311 is a deficient number, since it is larger than the sum of its proper divisors (736149844889).

12031021310311 is a wasteful number, since it uses less digits than its factorization.

12031021310311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194838.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 12031021310311 its reverse (11301312013021), we get a palindrome (23332333323332).

The spelling of 12031021310311 in words is "twelve trillion, thirty-one billion, twenty-one million, three hundred ten thousand, three hundred eleven".