223242121132321 has 8 divisors (see below), whose sum is σ = 225800704904040. Its totient is φ = 220684653923712.

The previous prime is 223242121132297. The next prime is 223242121132351. The reversal of 223242121132321 is 123231121242322.

It can be written as a sum of positive squares in 4 ways, for example, as 46227611229921 + 177014509902400 = 6799089^2 + 13304680^2 .

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 223242121132321 - 2³⁷ = 223104682178849 is a prime.

It is a super-3 number, since 3×223242121132321³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223242121132351) 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, 278738610 + ... + 279538363.

It is an arithmetic number, because the mean of its divisors is an integer number (28225088113005).

Almost surely, 2^{223242121132321} is an apocalyptic number.

It is an amenable number.

223242121132321 is a deficient number, since it is larger than the sum of its proper divisors (2558583771719).

223242121132321 is an equidigital number, since it uses as much as digits as its factorization.

223242121132321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 558281555.

The product of its digits is 13824, while the sum is 31.

Adding to 223242121132321 its reverse (123231121242322), we get a palindrome (346473242374643).

The spelling of 223242121132321 in words is "two hundred twenty-three trillion, two hundred forty-two billion, one hundred twenty-one million, one hundred thirty-two thousand, three hundred twenty-one".