20121003303 has 4 divisors (see below), whose sum is σ = 26828004408. Its totient is φ = 13414002200.

The previous prime is 20121003239. The next prime is 20121003307. The reversal of 20121003303 is 30330012102.

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

It is a cyclic number.

It is not a de Polignac number, because 20121003303 - 2⁶ = 20121003239 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20121003307) 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, 3353500548 + ... + 3353500553.

It is an arithmetic number, because the mean of its divisors is an integer number (6707001102).

Almost surely, 2^20121003303 is an apocalyptic number.

20121003303 is a deficient number, since it is larger than the sum of its proper divisors (6707001105).

20121003303 is an equidigital number, since it uses as much as digits as its factorization.

20121003303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6707001104.

The product of its (nonzero) digits is 108, while the sum is 15.

Adding to 20121003303 its reverse (30330012102), we get a palindrome (50451015405).

The spelling of 20121003303 in words is "twenty billion, one hundred twenty-one million, three thousand, three hundred three".