355434505121 has 2 divisors, whose sum is σ = 355434505122. Its totient is φ = 355434505120.

The previous prime is 355434505117. The next prime is 355434505183. The reversal of 355434505121 is 121505434553.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 345551162896 + 9883342225 = 587836^2 + 99415^2 .

It is an emirp because it is prime and its reverse (121505434553) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 355434505121 - 2² = 355434505117 is a prime.

It is a super-2 number, since 2×355434505121² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (355434505721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 177717252560 + 177717252561.

It is an arithmetic number, because the mean of its divisors is an integer number (177717252561).

Almost surely, 2^355434505121 is an apocalyptic number.

It is an amenable number.

355434505121 is a deficient number, since it is larger than the sum of its proper divisors (1).

355434505121 is an equidigital number, since it uses as much as digits as its factorization.

355434505121 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180000, while the sum is 38.

Adding to 355434505121 its reverse (121505434553), we get a palindrome (476939939674).

The spelling of 355434505121 in words is "three hundred fifty-five billion, four hundred thirty-four million, five hundred five thousand, one hundred twenty-one".