221232401323 has 8 divisors (see below), whose sum is σ = 222294842960. Its totient is φ = 220170091680.

The previous prime is 221232401309. The next prime is 221232401353. The reversal of 221232401323 is 323104232122.

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

It is a cyclic number.

It is not a de Polignac number, because 221232401323 - 2¹³ = 221232393131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (221232401353) 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, 5700661 + ... + 5739337.

It is an arithmetic number, because the mean of its divisors is an integer number (27786855370).

Almost surely, 2^221232401323 is an apocalyptic number.

221232401323 is a deficient number, since it is larger than the sum of its proper divisors (1062441637).

221232401323 is a wasteful number, since it uses less digits than its factorization.

221232401323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65997.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 221232401323 its reverse (323104232122), we get a palindrome (544336633445).

The spelling of 221232401323 in words is "two hundred twenty-one billion, two hundred thirty-two million, four hundred one thousand, three hundred twenty-three".