243130222241 has 2 divisors, whose sum is σ = 243130222242. Its totient is φ = 243130222240.

The previous prime is 243130222207. The next prime is 243130222259. The reversal of 243130222241 is 142222031342.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 226766440000 + 16363782241 = 476200^2 + 127921^2 .

It is a cyclic number.

It is not a de Polignac number, because 243130222241 - 2¹⁸ = 243129960097 is a prime.

It is a super-2 number, since 2×243130222241² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 243130222241.

It is not a weakly prime, because it can be changed into another prime (243130222541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121565111120 + 121565111121.

It is an arithmetic number, because the mean of its divisors is an integer number (121565111121).

Almost surely, 2^243130222241 is an apocalyptic number.

It is an amenable number.

243130222241 is a deficient number, since it is larger than the sum of its proper divisors (1).

243130222241 is an equidigital number, since it uses as much as digits as its factorization.

243130222241 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 243130222241 its reverse (142222031342), we get a palindrome (385352253583).

The spelling of 243130222241 in words is "two hundred forty-three billion, one hundred thirty million, two hundred twenty-two thousand, two hundred forty-one".