13023313100221 has 4 divisors (see below), whose sum is σ = 13023349541532. Its totient is φ = 13023276658912.

The previous prime is 13023313100219. The next prime is 13023313100351. The reversal of 13023313100221 is 12200131332031.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 7608709875321 + 5414603224900 = 2758389^2 + 2326930^2 .

It is a cyclic number.

It is not a de Polignac number, because 13023313100221 - 2¹ = 13023313100219 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13023313100192 and 13023313100201.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023313100921) 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, 17679226 + ... + 18401131.

It is an arithmetic number, because the mean of its divisors is an integer number (3255837385383).

Almost surely, 2^{13023313100221} is an apocalyptic number.

It is an amenable number.

13023313100221 is a deficient number, since it is larger than the sum of its proper divisors (36441311).

13023313100221 is an equidigital number, since it uses as much as digits as its factorization.

13023313100221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36441310.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13023313100221 its reverse (12200131332031), we get a palindrome (25223444432252).

The spelling of 13023313100221 in words is "thirteen trillion, twenty-three billion, three hundred thirteen million, one hundred thousand, two hundred twenty-one".