10000303121 has 4 divisors (see below), whose sum is σ = 10000515252. Its totient is φ = 10000090992.

The previous prime is 10000303111. The next prime is 10000303141. The reversal of 10000303121 is 12130300001.

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 6724000000 + 3276303121 = 82000^2 + 57239^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-10000303121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10000303111) 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, 11 + ... + 141423.

It is an arithmetic number, because the mean of its divisors is an integer number (2500128813).

Almost surely, 2^10000303121 is an apocalyptic number.

It is an amenable number.

10000303121 is a deficient number, since it is larger than the sum of its proper divisors (212131).

10000303121 is an equidigital number, since it uses as much as digits as its factorization.

10000303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 212130.

The product of its (nonzero) digits is 18, while the sum is 11.

Adding to 10000303121 its reverse (12130300001), we get a palindrome (22130603122).

The spelling of 10000303121 in words is "ten billion, three hundred three thousand, one hundred twenty-one".