13121301303323 has 4 divisors (see below), whose sum is σ = 13121311083168. Its totient is φ = 13121291523480.

The previous prime is 13121301303307. The next prime is 13121301303479. The reversal of 13121301303323 is 32330310312131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13121301303323 - 2⁴ = 13121301303307 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121301303292 and 13121301303301.

It is not an unprimeable number, because it can be changed into a prime (13121301303823) 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, 2482268 + ... + 5692473.

It is an arithmetic number, because the mean of its divisors is an integer number (3280327770792).

Almost surely, 2^{13121301303323} is an apocalyptic number.

13121301303323 is a deficient number, since it is larger than the sum of its proper divisors (9779845).

13121301303323 is an equidigital number, since it uses as much as digits as its factorization.

13121301303323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9779844.

The product of its (nonzero) digits is 2916, while the sum is 26.

Adding to 13121301303323 its reverse (32330310312131), we get a palindrome (45451611615454).

The spelling of 13121301303323 in words is "thirteen trillion, one hundred twenty-one billion, three hundred one million, three hundred three thousand, three hundred twenty-three".