355882785121 has 2 divisors, whose sum is σ = 355882785122. Its totient is φ = 355882785120.

The previous prime is 355882785101. The next prime is 355882785127. The reversal of 355882785121 is 121587288553.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 187631050896 + 168251734225 = 433164^2 + 410185^2 .

It is a cyclic number.

It is not a de Polignac number, because 355882785121 - 2¹⁵ = 355882752353 is a prime.

It is not a weakly prime, because it can be changed into another prime (355882785127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177941392560 + 177941392561.

It is an arithmetic number, because the mean of its divisors is an integer number (177941392561).

Almost surely, 2^355882785121 is an apocalyptic number.

It is an amenable number.

355882785121 is a deficient number, since it is larger than the sum of its proper divisors (1).

355882785121 is an equidigital number, since it uses as much as digits as its factorization.

355882785121 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 5376000, while the sum is 55.

The spelling of 355882785121 in words is "three hundred fifty-five billion, eight hundred eighty-two million, seven hundred eighty-five thousand, one hundred twenty-one".