13121010030203 has 4 divisors (see below), whose sum is σ = 13441034665128. Its totient is φ = 12800985395280.

The previous prime is 13121010030151. The next prime is 13121010030229. The reversal of 13121010030203 is 30203001012131.

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 13121010030203 - 2⁸ = 13121010029947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121010030253) 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, 160012317401 + ... + 160012317482.

It is an arithmetic number, because the mean of its divisors is an integer number (3360258666282).

Almost surely, 2^{13121010030203} is an apocalyptic number.

13121010030203 is a deficient number, since it is larger than the sum of its proper divisors (320024634925).

13121010030203 is an equidigital number, since it uses as much as digits as its factorization.

13121010030203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 320024634924.

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

Adding to 13121010030203 its reverse (30203001012131), we get a palindrome (43324011042334).

The spelling of 13121010030203 in words is "thirteen trillion, one hundred twenty-one billion, ten million, thirty thousand, two hundred three".