223013312321 has 8 divisors (see below), whose sum is σ = 228458978664. Its totient is φ = 217567946880.

The previous prime is 223013312299. The next prime is 223013312369. The reversal of 223013312321 is 123213310322.

It can be written as a sum of positive squares in 4 ways, for example, as 59518433296 + 163494879025 = 243964^2 + 404345^2 .

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223013312321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223013312381) 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, 2435255 + ... + 2525171.

It is an arithmetic number, because the mean of its divisors is an integer number (28557372333).

Almost surely, 2^223013312321 is an apocalyptic number.

It is an amenable number.

223013312321 is a deficient number, since it is larger than the sum of its proper divisors (5445666343).

223013312321 is an equidigital number, since it uses as much as digits as its factorization.

223013312321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 150451.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 223013312321 its reverse (123213310322), we get a palindrome (346226622643).

The spelling of 223013312321 in words is "two hundred twenty-three billion, thirteen million, three hundred twelve thousand, three hundred twenty-one".