13423021144 has 16 divisors (see below), whose sum is σ = 27104177520. Its totient is φ = 6195240480.

The previous prime is 13423021141. The next prime is 13423021153. The reversal of 13423021144 is 44112032431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13423021141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 64533652 + ... + 64533859.

It is an arithmetic number, because the mean of its divisors is an integer number (1694011095).

Almost surely, 2^13423021144 is an apocalyptic number.

It is an amenable number.

13423021144 is an abundant number, since it is smaller than the sum of its proper divisors (13681156376).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13423021144 is a wasteful number, since it uses less digits than its factorization.

13423021144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129067530 (or 129067526 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 13423021144 its reverse (44112032431), we get a palindrome (57535053575).

The spelling of 13423021144 in words is "thirteen billion, four hundred twenty-three million, twenty-one thousand, one hundred forty-four".