242034315521 has 2 divisors, whose sum is σ = 242034315522. Its totient is φ = 242034315520.

The previous prime is 242034315493. The next prime is 242034315533. The reversal of 242034315521 is 125513430242.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 136822311025 + 105212004496 = 369895^2 + 324364^2 .

It is a cyclic number.

It is not a de Polignac number, because 242034315521 - 2¹⁸ = 242034053377 is a prime.

It is not a weakly prime, because it can be changed into another prime (242034315541) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121017157760 + 121017157761.

It is an arithmetic number, because the mean of its divisors is an integer number (121017157761).

Almost surely, 2^242034315521 is an apocalyptic number.

It is an amenable number.

242034315521 is a deficient number, since it is larger than the sum of its proper divisors (1).

242034315521 is an equidigital number, since it uses as much as digits as its factorization.

242034315521 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 28800, while the sum is 32.

Adding to 242034315521 its reverse (125513430242), we get a palindrome (367547745763).

The spelling of 242034315521 in words is "two hundred forty-two billion, thirty-four million, three hundred fifteen thousand, five hundred twenty-one".