223112312105 has 4 divisors (see below), whose sum is σ = 267734774532. Its totient is φ = 178489849680.

The previous prime is 223112312099. The next prime is 223112312117. The reversal of 223112312105 is 501213211322.

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 132985667584 + 90126644521 = 364672^2 + 300211^2 .

It is not a de Polignac number, because 223112312105 - 2⁶ = 223112312041 is a prime.

It is a super-3 number, since 3×223112312105³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 22311231206 + ... + 22311231215.

It is an arithmetic number, because the mean of its divisors is an integer number (66933693633).

Almost surely, 2^223112312105 is an apocalyptic number.

It is an amenable number.

223112312105 is a deficient number, since it is larger than the sum of its proper divisors (44622462427).

223112312105 is an equidigital number, since it uses as much as digits as its factorization.

223112312105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 44622462426.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 223112312105 its reverse (501213211322), we get a palindrome (724325523427).

The spelling of 223112312105 in words is "two hundred twenty-three billion, one hundred twelve million, three hundred twelve thousand, one hundred five".