12021311311223 has 8 divisors (see below), whose sum is σ = 12040301895600. Its totient is φ = 12002324076288.

The previous prime is 12021311311171. The next prime is 12021311311241. The reversal of 12021311311223 is 32211311312021.

It is a happy number.

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 12021311311223 - 2¹⁰ = 12021311310199 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 (12021311391223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6395693 + ... + 8059001.

It is an arithmetic number, because the mean of its divisors is an integer number (1505037736950).

Almost surely, 2^{12021311311223} is an apocalyptic number.

12021311311223 is a deficient number, since it is larger than the sum of its proper divisors (18990584377).

12021311311223 is a wasteful number, since it uses less digits than its factorization.

12021311311223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1674721.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 12021311311223 its reverse (32211311312021), we get a palindrome (44232622623244).

The spelling of 12021311311223 in words is "twelve trillion, twenty-one billion, three hundred eleven million, three hundred eleven thousand, two hundred twenty-three".