12321011223011 has 4 divisors (see below), whose sum is σ = 12330875925000. Its totient is φ = 12311146521024.

The previous prime is 12321011222983. The next prime is 12321011223091. The reversal of 12321011223011 is 11032211012321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12321011223011 is a prime.

It is a super-2 number, since 2×12321011223011² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321011223091) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4932349121 + ... + 4932351618.

It is an arithmetic number, because the mean of its divisors is an integer number (3082718981250).

Almost surely, 2^{12321011223011} is an apocalyptic number.

12321011223011 is a deficient number, since it is larger than the sum of its proper divisors (9864701989).

12321011223011 is an equidigital number, since it uses as much as digits as its factorization.

12321011223011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9864701988.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 12321011223011 its reverse (11032211012321), we get a palindrome (23353222235332).

The spelling of 12321011223011 in words is "twelve trillion, three hundred twenty-one billion, eleven million, two hundred twenty-three thousand, eleven".