100303131221 has 8 divisors (see below), whose sum is σ = 100568580000. Its totient is φ = 100037941200.

The previous prime is 100303131191. The next prime is 100303131223. The reversal of 100303131221 is 122131303001.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100303131221 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 100303131221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (100303131223) 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 in 7 ways as a sum of consecutive naturals, for example, 724271 + ... + 851571.

It is an arithmetic number, because the mean of its divisors is an integer number (12571072500).

Almost surely, 2^100303131221 is an apocalyptic number.

It is an amenable number.

100303131221 is a deficient number, since it is larger than the sum of its proper divisors (265448779).

100303131221 is a wasteful number, since it uses less digits than its factorization.

100303131221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129379.

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

Adding to 100303131221 its reverse (122131303001), we get a palindrome (222434434222).

The spelling of 100303131221 in words is "one hundred billion, three hundred three million, one hundred thirty-one thousand, two hundred twenty-one".