223230042121 has 2 divisors, whose sum is σ = 223230042122. Its totient is φ = 223230042120.

The previous prime is 223230042059. The next prime is 223230042149. The reversal of 223230042121 is 121240032322.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 157688410000 + 65541632121 = 397100^2 + 256011^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223230042121 is a prime.

It is a super-3 number, since 3×223230042121³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 223230042092 and 223230042101.

It is not a weakly prime, because it can be changed into another prime (223230042221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111615021060 + 111615021061.

It is an arithmetic number, because the mean of its divisors is an integer number (111615021061).

Almost surely, 2^223230042121 is an apocalyptic number.

It is an amenable number.

223230042121 is a deficient number, since it is larger than the sum of its proper divisors (1).

223230042121 is an equidigital number, since it uses as much as digits as its factorization.

223230042121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 223230042121 its reverse (121240032322), we get a palindrome (344470074443).

The spelling of 223230042121 in words is "two hundred twenty-three billion, two hundred thirty million, forty-two thousand, one hundred twenty-one".