355240340402293 has 2 divisors, whose sum is σ = 355240340402294. Its totient is φ = 355240340402292.

The previous prime is 355240340402281. The next prime is 355240340402303. The reversal of 355240340402293 is 392204043042553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 355098484219249 + 141856183044 = 18844057^2 + 376638^2 .

It is a cyclic number.

It is not a de Polignac number, because 355240340402293 - 2⁵ = 355240340402261 is a prime.

It is a super-2 number, since 2×355240340402293² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (355240340403293) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177620170201146 + 177620170201147.

It is an arithmetic number, because the mean of its divisors is an integer number (177620170201147).

Almost surely, 2^{355240340402293} is an apocalyptic number.

It is an amenable number.

355240340402293 is a deficient number, since it is larger than the sum of its proper divisors (1).

355240340402293 is an equidigital number, since it uses as much as digits as its factorization.

355240340402293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 3110400, while the sum is 46.

The spelling of 355240340402293 in words is "three hundred fifty-five trillion, two hundred forty billion, three hundred forty million, four hundred two thousand, two hundred ninety-three".