223012103121 has 20 divisors (see below), whose sum is σ = 333167365300. Its totient is φ = 148663208736.

The previous prime is 223012103087. The next prime is 223012103173. The reversal of 223012103121 is 121301210322.

223012103121 is a `hidden beast` number, since 2 + 230 + 121 + 0 + 312 + 1 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 189316361025 + 33695742096 = 435105^2 + 183564^2 .

It is not a de Polignac number, because 223012103121 - 2¹⁹ = 223011578833 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 223012103094 and 223012103103.

It is not an unprimeable number, because it can be changed into a prime (223012103621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1017075 + ... + 1216743.

It is an arithmetic number, because the mean of its divisors is an integer number (16658368265).

Almost surely, 2^223012103121 is an apocalyptic number.

It is an amenable number.

223012103121 is a deficient number, since it is larger than the sum of its proper divisors (110155262179).

223012103121 is a wasteful number, since it uses less digits than its factorization.

223012103121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213470 (or 213461 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 223012103121 its reverse (121301210322), we get a palindrome (344313313443).

The spelling of 223012103121 in words is "two hundred twenty-three billion, twelve million, one hundred three thousand, one hundred twenty-one".