100550335100321 has 16 divisors (see below), whose sum is σ = 103298837259600. Its totient is φ = 97803465458688.

The previous prime is 100550335100317. The next prime is 100550335100387. The reversal of 100550335100321 is 123001533055001.

It is a happy number.

It can be written as a sum of positive squares in 8 ways, for example, as 23615333112721 + 76935001987600 = 4859561^2 + 8771260^2 .

It is a cyclic number.

It is not a de Polignac number, because 100550335100321 - 2² = 100550335100317 is a prime.

It is a super-2 number, since 2×100550335100321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (100550335100311) 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 15 ways as a sum of consecutive naturals, for example, 1893113261 + ... + 1893166373.

It is an arithmetic number, because the mean of its divisors is an integer number (6456177328725).

Almost surely, 2^{100550335100321} is an apocalyptic number.

It is an amenable number.

100550335100321 is a deficient number, since it is larger than the sum of its proper divisors (2748502159279).

100550335100321 is an equidigital number, since it uses as much as digits as its factorization.

100550335100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67508.

The product of its (nonzero) digits is 6750, while the sum is 29.

Adding to 100550335100321 its reverse (123001533055001), we get a palindrome (223551868155322).

The spelling of 100550335100321 in words is "one hundred trillion, five hundred fifty billion, three hundred thirty-five million, one hundred thousand, three hundred twenty-one".