223106243213321 has 4 divisors (see below), whose sum is σ = 240268261922052. Its totient is φ = 205944224504592.

The previous prime is 223106243213317. The next prime is 223106243213363. The reversal of 223106243213321 is 123312342601322.

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 25938027657721 + 197168215555600 = 5092939^2 + 14041660^2 .

It is a cyclic number.

It is not a de Polignac number, because 223106243213321 - 2² = 223106243213317 is a prime.

It is a super-3 number, since 3×223106243213321³ (a number of 44 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (223106243213221) 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, 8581009354346 + ... + 8581009354371.

It is an arithmetic number, because the mean of its divisors is an integer number (60067065480513).

Almost surely, 2^{223106243213321} is an apocalyptic number.

It is an amenable number.

223106243213321 is a deficient number, since it is larger than the sum of its proper divisors (17162018708731).

223106243213321 is a wasteful number, since it uses less digits than its factorization.

223106243213321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17162018708730.

The product of its (nonzero) digits is 62208, while the sum is 35.

Adding to 223106243213321 its reverse (123312342601322), we get a palindrome (346418585814643).

The spelling of 223106243213321 in words is "two hundred twenty-three trillion, one hundred six billion, two hundred forty-three million, two hundred thirteen thousand, three hundred twenty-one".