223121301061 has 2 divisors, whose sum is σ = 223121301062. Its totient is φ = 223121301060.

The previous prime is 223121301001. The next prime is 223121301077. The reversal of 223121301061 is 160103121322.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 153468062500 + 69653238561 = 391750^2 + 263919^2 .

It is a cyclic number.

It is not a de Polignac number, because 223121301061 - 2¹³ = 223121292869 is a prime.

It is a super-3 number, since 3×223121301061³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223121301001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111560650530 + 111560650531.

It is an arithmetic number, because the mean of its divisors is an integer number (111560650531).

Almost surely, 2^223121301061 is an apocalyptic number.

It is an amenable number.

223121301061 is a deficient number, since it is larger than the sum of its proper divisors (1).

223121301061 is an equidigital number, since it uses as much as digits as its factorization.

223121301061 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 223121301061 its reverse (160103121322), we get a palindrome (383224422383).

The spelling of 223121301061 in words is "two hundred twenty-three billion, one hundred twenty-one million, three hundred one thousand, sixty-one".