242151335544101 has 2 divisors, whose sum is σ = 242151335544102. Its totient is φ = 242151335544100.

The previous prime is 242151335544089. The next prime is 242151335544137. The reversal of 242151335544101 is 101445533151242.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 211450859822500 + 30700475721601 = 14541350^2 + 5540801^2 .

It is a cyclic number.

It is not a de Polignac number, because 242151335544101 - 2⁶ = 242151335544037 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (242151335844101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 121075667772050 + 121075667772051.

It is an arithmetic number, because the mean of its divisors is an integer number (121075667772051).

Almost surely, 2^{242151335544101} is an apocalyptic number.

It is an amenable number.

242151335544101 is a deficient number, since it is larger than the sum of its proper divisors (1).

242151335544101 is an equidigital number, since it uses as much as digits as its factorization.

242151335544101 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 288000, while the sum is 41.

Adding to 242151335544101 its reverse (101445533151242), we get a palindrome (343596868695343).

The spelling of 242151335544101 in words is "two hundred forty-two trillion, one hundred fifty-one billion, three hundred thirty-five million, five hundred forty-four thousand, one hundred one".