355321023311209 has 2 divisors, whose sum is σ = 355321023311210. Its totient is φ = 355321023311208.

The previous prime is 355321023311201. The next prime is 355321023311297. The reversal of 355321023311209 is 902113320123553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 214061332797225 + 141259690513984 = 14630835^2 + 11885272^2 .

It is a cyclic number.

It is not a de Polignac number, because 355321023311209 - 2³ = 355321023311201 is a prime.

It is not a weakly prime, because it can be changed into another prime (355321023311201) 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, 177660511655604 + 177660511655605.

It is an arithmetic number, because the mean of its divisors is an integer number (177660511655605).

Almost surely, 2^{355321023311209} is an apocalyptic number.

It is an amenable number.

355321023311209 is a deficient number, since it is larger than the sum of its proper divisors (1).

355321023311209 is an equidigital number, since it uses as much as digits as its factorization.

355321023311209 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 145800, while the sum is 40.

The spelling of 355321023311209 in words is "three hundred fifty-five trillion, three hundred twenty-one billion, twenty-three million, three hundred eleven thousand, two hundred nine".