20303121311203 has 8 divisors (see below), whose sum is σ = 20316302965728. Its totient is φ = 20289941094144.

The previous prime is 20303121311131. The next prime is 20303121311243. The reversal of 20303121311203 is 30211312130302.

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

It is a cyclic number.

It is not a de Polignac number, because 20303121311203 - 2²⁵ = 20303087756771 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20303121311243) 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 7 ways as a sum of consecutive naturals, for example, 28656850 + ... + 29356792.

It is an arithmetic number, because the mean of its divisors is an integer number (2539537870716).

Almost surely, 2^{20303121311203} is an apocalyptic number.

20303121311203 is a deficient number, since it is larger than the sum of its proper divisors (13181654525).

20303121311203 is a wasteful number, since it uses less digits than its factorization.

20303121311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 718733.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20303121311203 its reverse (30211312130302), we get a palindrome (50514433441505).

The spelling of 20303121311203 in words is "twenty trillion, three hundred three billion, one hundred twenty-one million, three hundred eleven thousand, two hundred three".