223444213073 has 2 divisors, whose sum is σ = 223444213074. Its totient is φ = 223444213072.

The previous prime is 223444213067. The next prime is 223444213123. The reversal of 223444213073 is 370312444322.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 142508515009 + 80935698064 = 377503^2 + 284492^2 .

It is a cyclic number.

It is not a de Polignac number, because 223444213073 - 2³⁰ = 222370471249 is a prime.

It is a super-3 number, since 3×223444213073³ (a number of 35 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (223444213033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111722106536 + 111722106537.

It is an arithmetic number, because the mean of its divisors is an integer number (111722106537).

Almost surely, 2^223444213073 is an apocalyptic number.

It is an amenable number.

223444213073 is a deficient number, since it is larger than the sum of its proper divisors (1).

223444213073 is an equidigital number, since it uses as much as digits as its factorization.

223444213073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96768, while the sum is 35.

Adding to 223444213073 its reverse (370312444322), we get a palindrome (593756657395).

The spelling of 223444213073 in words is "two hundred twenty-three billion, four hundred forty-four million, two hundred thirteen thousand, seventy-three".