13123301132321 has 4 divisors (see below), whose sum is σ = 13546633426944. Its totient is φ = 12699968837700.

The previous prime is 13123301132311. The next prime is 13123301132443. The reversal of 13123301132321 is 12323110332131.

13123301132321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13123301132321 - 2³⁰ = 13122227390497 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (13123301132311) 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, 211666147265 + ... + 211666147326.

It is an arithmetic number, because the mean of its divisors is an integer number (3386658356736).

Almost surely, 2^{13123301132321} is an apocalyptic number.

It is an amenable number.

13123301132321 is a deficient number, since it is larger than the sum of its proper divisors (423332294623).

13123301132321 is an equidigital number, since it uses as much as digits as its factorization.

13123301132321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 423332294622.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 13123301132321 its reverse (12323110332131), we get a palindrome (25446411464452).

The spelling of 13123301132321 in words is "thirteen trillion, one hundred twenty-three billion, three hundred one million, one hundred thirty-two thousand, three hundred twenty-one".