20310121203 has 8 divisors (see below), whose sum is σ = 28013960400. Its totient is φ = 13073181408.

The previous prime is 20310121199. The next prime is 20310121241. The reversal of 20310121203 is 30212101302.

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

It is not a de Polignac number, because 20310121203 - 2² = 20310121199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20310121103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 116724748 + ... + 116724921.

It is an arithmetic number, because the mean of its divisors is an integer number (3501745050).

Almost surely, 2^20310121203 is an apocalyptic number.

20310121203 is a deficient number, since it is larger than the sum of its proper divisors (7703839197).

20310121203 is a wasteful number, since it uses less digits than its factorization.

20310121203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 233449701.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 20310121203 its reverse (30212101302), we get a palindrome (50522222505).

The spelling of 20310121203 in words is "twenty billion, three hundred ten million, one hundred twenty-one thousand, two hundred three".