355503213103321 has 8 divisors (see below), whose sum is σ = 356815866235904. Its totient is φ = 354190566097440.

The previous prime is 355503213103243. The next prime is 355503213103391. The reversal of 355503213103321 is 123301312305553.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 355503213103321 - 2¹⁹ = 355503212579033 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (355503213103391) 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 in 7 ways as a sum of consecutive naturals, for example, 138232045 + ... + 140780341.

It is an arithmetic number, because the mean of its divisors is an integer number (44601983279488).

Almost surely, 2^{355503213103321} is an apocalyptic number.

It is an amenable number.

355503213103321 is a deficient number, since it is larger than the sum of its proper divisors (1312653132583).

355503213103321 is a wasteful number, since it uses less digits than its factorization.

355503213103321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3063351.

The product of its (nonzero) digits is 121500, while the sum is 37.

Adding to 355503213103321 its reverse (123301312305553), we get a palindrome (478804525408874).

The spelling of 355503213103321 in words is "three hundred fifty-five trillion, five hundred three billion, two hundred thirteen million, one hundred three thousand, three hundred twenty-one".