223113313020121 has 2 divisors, whose sum is σ = 223113313020122. Its totient is φ = 223113313020120.

The previous prime is 223113313020107. The next prime is 223113313020127. The reversal of 223113313020121 is 121020313311322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 127101632932096 + 96011680088025 = 11273936^2 + 9798555^2 .

It is a cyclic number.

It is not a de Polignac number, because 223113313020121 - 2⁵ = 223113313020089 is a prime.

It is a super-3 number, since 3×223113313020121³ (a number of 44 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223113313020127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111556656510060 + 111556656510061.

It is an arithmetic number, because the mean of its divisors is an integer number (111556656510061).

Almost surely, 2^{223113313020121} is an apocalyptic number.

It is an amenable number.

223113313020121 is a deficient number, since it is larger than the sum of its proper divisors (1).

223113313020121 is an equidigital number, since it uses as much as digits as its factorization.

223113313020121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 223113313020121 its reverse (121020313311322), we get a palindrome (344133626331443).

The spelling of 223113313020121 in words is "two hundred twenty-three trillion, one hundred thirteen billion, three hundred thirteen million, twenty thousand, one hundred twenty-one".