12021311222323 has 12 divisors (see below), whose sum is σ = 13020921220608. Its totient is φ = 11093388252960.

The previous prime is 12021311222231. The next prime is 12021311222339. The reversal of 12021311222323 is 32322211312021.

It is not a de Polignac number, because 12021311222323 - 2⁹ = 12021311221811 is a prime.

It is a super-3 number, since 3×12021311222323³ (a number of 40 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12021311222363) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9691315 + ... + 10861132.

It is an arithmetic number, because the mean of its divisors is an integer number (1085076768384).

Almost surely, 2^{12021311222323} is an apocalyptic number.

12021311222323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

12021311222323 is a deficient number, since it is larger than the sum of its proper divisors (999609998285).

12021311222323 is a wasteful number, since it uses less digits than its factorization.

12021311222323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20555934 (or 20555921 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 12021311222323 its reverse (32322211312021), we get a palindrome (44343522534344).

The spelling of 12021311222323 in words is "twelve trillion, twenty-one billion, three hundred eleven million, two hundred twenty-two thousand, three hundred twenty-three".