13121032100303 has 4 divisors (see below), whose sum is σ = 13124922122088. Its totient is φ = 13117142078520.

The previous prime is 13121032100299. The next prime is 13121032100347. The reversal of 13121032100303 is 30300123012131.

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 13121032100303 - 2² = 13121032100299 is a prime.

It is a super-2 number, since 2×13121032100303² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121032100353) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1945005833 + ... + 1945012578.

It is an arithmetic number, because the mean of its divisors is an integer number (3281230530522).

Almost surely, 2^{13121032100303} is an apocalyptic number.

13121032100303 is a deficient number, since it is larger than the sum of its proper divisors (3890021785).

13121032100303 is an equidigital number, since it uses as much as digits as its factorization.

13121032100303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3890021784.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13121032100303 its reverse (30300123012131), we get a palindrome (43421155112434).

The spelling of 13121032100303 in words is "thirteen trillion, one hundred twenty-one billion, thirty-two million, one hundred thousand, three hundred three".