12201200023 has 4 divisors (see below), whose sum is σ = 12244314088. Its totient is φ = 12158085960.

The previous prime is 12201200017. The next prime is 12201200041. The reversal of 12201200023 is 32000210221.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32000210221 = 7 ⋅4571458603.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12201200023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12201199976 and 12201200012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12201200093) 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, 21556608 + ... + 21557173.

It is an arithmetic number, because the mean of its divisors is an integer number (3061078522).

Almost surely, 2^12201200023 is an apocalyptic number.

12201200023 is a deficient number, since it is larger than the sum of its proper divisors (43114065).

12201200023 is an equidigital number, since it uses as much as digits as its factorization.

12201200023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43114064.

The product of its (nonzero) digits is 48, while the sum is 13.

Adding to 12201200023 its reverse (32000210221), we get a palindrome (44201410244).

The spelling of 12201200023 in words is "twelve billion, two hundred one million, two hundred thousand, twenty-three".