355240142041121 has 2 divisors, whose sum is σ = 355240142041122. Its totient is φ = 355240142041120.

The previous prime is 355240142041097. The next prime is 355240142041159. The reversal of 355240142041121 is 121140241042553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 355052619265600 + 187522775521 = 18842840^2 + 433039^2 .

It is a cyclic number.

It is not a de Polignac number, because 355240142041121 - 2²² = 355240137846817 is a prime.

It is not a weakly prime, because it can be changed into another prime (355240142046121) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177620071020560 + 177620071020561.

It is an arithmetic number, because the mean of its divisors is an integer number (177620071020561).

Almost surely, 2^{355240142041121} is an apocalyptic number.

It is an amenable number.

355240142041121 is a deficient number, since it is larger than the sum of its proper divisors (1).

355240142041121 is an equidigital number, since it uses as much as digits as its factorization.

355240142041121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 38400, while the sum is 35.

Adding to 355240142041121 its reverse (121140241042553), we get a palindrome (476380383083674).

The spelling of 355240142041121 in words is "three hundred fifty-five trillion, two hundred forty billion, one hundred forty-two million, forty-one thousand, one hundred twenty-one".