100311330221 has 4 divisors (see below), whose sum is σ = 103022447292. Its totient is φ = 97600213152.

The previous prime is 100311330199. The next prime is 100311330241. The reversal of 100311330221 is 122033113001.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 53227104100 + 47084226121 = 230710^2 + 216989^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100311330221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 100311330221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100311330241) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1355558480 + ... + 1355558553.

It is an arithmetic number, because the mean of its divisors is an integer number (25755611823).

Almost surely, 2^100311330221 is an apocalyptic number.

It is an amenable number.

100311330221 is a deficient number, since it is larger than the sum of its proper divisors (2711117071).

100311330221 is an equidigital number, since it uses as much as digits as its factorization.

100311330221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2711117070.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 100311330221 its reverse (122033113001), we get a palindrome (222344443222).

The spelling of 100311330221 in words is "one hundred billion, three hundred eleven million, three hundred thirty thousand, two hundred twenty-one".