13023412221 has 8 divisors (see below), whose sum is σ = 17649214624. Its totient is φ = 8539942320.

The previous prime is 13023412187. The next prime is 13023412261. The reversal of 13023412221 is 12221432031.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13023412221 - 2¹³ = 13023404029 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13023412261) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 35582911 + ... + 35583276.

It is an arithmetic number, because the mean of its divisors is an integer number (2206151828).

Almost surely, 2^13023412221 is an apocalyptic number.

It is an amenable number.

13023412221 is a deficient number, since it is larger than the sum of its proper divisors (4625802403).

13023412221 is an equidigital number, since it uses as much as digits as its factorization.

13023412221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71166251.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 13023412221 its reverse (12221432031), we get a palindrome (25244844252).

The spelling of 13023412221 in words is "thirteen billion, twenty-three million, four hundred twelve thousand, two hundred twenty-one".