223240321123 has 2 divisors, whose sum is σ = 223240321124. Its totient is φ = 223240321122.

The previous prime is 223240321069. The next prime is 223240321127. The reversal of 223240321123 is 321123042322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223240321123 - 2¹⁷ = 223240190051 is a prime.

It is a super-3 number, since 3×223240321123³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not a weakly prime, because it can be changed into another prime (223240321127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111620160561 + 111620160562.

It is an arithmetic number, because the mean of its divisors is an integer number (111620160562).

Almost surely, 2^223240321123 is an apocalyptic number.

223240321123 is a deficient number, since it is larger than the sum of its proper divisors (1).

223240321123 is an equidigital number, since it uses as much as digits as its factorization.

223240321123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 223240321123 its reverse (321123042322), we get a palindrome (544363363445).

The spelling of 223240321123 in words is "two hundred twenty-three billion, two hundred forty million, three hundred twenty-one thousand, one hundred twenty-three".