242505235513 has 2 divisors, whose sum is σ = 242505235514. Its totient is φ = 242505235512.

The previous prime is 242505235499. The next prime is 242505235537. The reversal of 242505235513 is 315532505242.

242505235513 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 145041390649 + 97463844864 = 380843^2 + 312192^2 .

It is a cyclic number.

It is not a de Polignac number, because 242505235513 - 2¹⁷ = 242505104441 is a prime.

It is not a weakly prime, because it can be changed into another prime (242505235573) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121252617756 + 121252617757.

It is an arithmetic number, because the mean of its divisors is an integer number (121252617757).

Almost surely, 2^242505235513 is an apocalyptic number.

It is an amenable number.

242505235513 is a deficient number, since it is larger than the sum of its proper divisors (1).

242505235513 is an equidigital number, since it uses as much as digits as its factorization.

242505235513 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180000, while the sum is 37.

The spelling of 242505235513 in words is "two hundred forty-two billion, five hundred five million, two hundred thirty-five thousand, five hundred thirteen".