12201320302123 has 4 divisors (see below), whose sum is σ = 12202126270120. Its totient is φ = 12200514334128.

The previous prime is 12201320302037. The next prime is 12201320302133. The reversal of 12201320302123 is 32120302310221.

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

It is a cyclic number.

It is not a de Polignac number, because 12201320302123 - 2²⁵ = 12201286747691 is a prime.

It is a super-2 number, since 2×12201320302123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201320302094 and 12201320302103.

It is not an unprimeable number, because it can be changed into a prime (12201320302133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 402961290 + ... + 402991567.

It is an arithmetic number, because the mean of its divisors is an integer number (3050531567530).

Almost surely, 2^{12201320302123} is an apocalyptic number.

12201320302123 is a deficient number, since it is larger than the sum of its proper divisors (805967997).

12201320302123 is an equidigital number, since it uses as much as digits as its factorization.

12201320302123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 805967996.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 12201320302123 its reverse (32120302310221), we get a palindrome (44321622612344).

The spelling of 12201320302123 in words is "twelve trillion, two hundred one billion, three hundred twenty million, three hundred two thousand, one hundred twenty-three".