223130021123 has 2 divisors, whose sum is σ = 223130021124. Its totient is φ = 223130021122.

The previous prime is 223130021119. The next prime is 223130021131. The reversal of 223130021123 is 321120031322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223130021123 - 2² = 223130021119 is a prime.

It is a super-3 number, since 3×223130021123³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 223130021095 and 223130021104.

It is not a weakly prime, because it can be changed into another prime (223130021183) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111565010561 + 111565010562.

It is an arithmetic number, because the mean of its divisors is an integer number (111565010562).

Almost surely, 2^223130021123 is an apocalyptic number.

223130021123 is a deficient number, since it is larger than the sum of its proper divisors (1).

223130021123 is an equidigital number, since it uses as much as digits as its factorization.

223130021123 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 20.

Adding to 223130021123 its reverse (321120031322), we get a palindrome (544250052445).

The spelling of 223130021123 in words is "two hundred twenty-three billion, one hundred thirty million, twenty-one thousand, one hundred twenty-three".