242653123541 has 2 divisors, whose sum is σ = 242653123542. Its totient is φ = 242653123540.

The previous prime is 242653123529. The next prime is 242653123549. The reversal of 242653123541 is 145321356242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 203103448900 + 39549674641 = 450670^2 + 198871^2 .

It is a cyclic number.

It is not a de Polignac number, because 242653123541 - 2¹⁸ = 242652861397 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 242653123495 and 242653123504.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242653123549) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121326561770 + 121326561771.

It is an arithmetic number, because the mean of its divisors is an integer number (121326561771).

Almost surely, 2^242653123541 is an apocalyptic number.

It is an amenable number.

242653123541 is a deficient number, since it is larger than the sum of its proper divisors (1).

242653123541 is an equidigital number, since it uses as much as digits as its factorization.

242653123541 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 172800, while the sum is 38.

Adding to 242653123541 its reverse (145321356242), we get a palindrome (387974479783).

The spelling of 242653123541 in words is "two hundred forty-two billion, six hundred fifty-three million, one hundred twenty-three thousand, five hundred forty-one".