12201623 has 8 divisors (see below), whose sum is σ = 14241792. Its totient is φ = 10235736.

The previous prime is 12201619. The next prime is 12201643. The reversal of 12201623 is 32610221.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12201623 - 2² = 12201619 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 (12201643) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18215 + ... + 18872.

It is an arithmetic number, because the mean of its divisors is an integer number (1780224).

Almost surely, 2^12201623 is an apocalyptic number.

12201623 is a deficient number, since it is larger than the sum of its proper divisors (2040169).

12201623 is an equidigital number, since it uses as much as digits as its factorization.

12201623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37141.

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 12201623 is about 3493.0821633623. The cubic root of 12201623 is about 230.2179597366.

Adding to 12201623 its reverse (32610221), we get a palindrome (44811844).

The spelling of 12201623 in words is "twelve million, two hundred one thousand, six hundred twenty-three".