12201423133 has 4 divisors (see below), whose sum is σ = 12207884220. Its totient is φ = 12194962048.

The previous prime is 12201423121. The next prime is 12201423139. The reversal of 12201423133 is 33132410221.

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

It can be written as a sum of positive squares in 2 ways, for example, as 5579044249 + 6622378884 = 74693^2 + 81378^2 .

It is a cyclic number.

It is not a de Polignac number, because 12201423133 - 2⁹ = 12201422621 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 (12201423139) 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, 3227710 + ... + 3231487.

It is an arithmetic number, because the mean of its divisors is an integer number (3051971055).

Almost surely, 2^12201423133 is an apocalyptic number.

It is an amenable number.

12201423133 is a deficient number, since it is larger than the sum of its proper divisors (6461087).

12201423133 is an equidigital number, since it uses as much as digits as its factorization.

12201423133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6461086.

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

Adding to 12201423133 its reverse (33132410221), we get a palindrome (45333833354).

The spelling of 12201423133 in words is "twelve billion, two hundred one million, four hundred twenty-three thousand, one hundred thirty-three".