13001345223044 has 24 divisors (see below), whose sum is σ = 23058344587320. Its totient is φ = 6413566427136.

The previous prime is 13001345223043. The next prime is 13001345223071. The reversal of 13001345223044 is 44032254310031.

It can be written as a sum of positive squares in 4 ways, for example, as 2994498733444 + 10006846489600 = 1730462^2 + 3163360^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 13001345223044.

It is not an unprimeable number, because it can be changed into a prime (13001345223043) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39794237 + ... + 40119620.

It is an arithmetic number, because the mean of its divisors is an integer number (960764357805).

Almost surely, 2^{13001345223044} is an apocalyptic number.

It is an amenable number.

13001345223044 is a deficient number, since it is larger than the sum of its proper divisors (10056999364276).

13001345223044 is a wasteful number, since it uses less digits than its factorization.

13001345223044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79914407 (or 79914405 counting only the distinct ones).

The product of its (nonzero) digits is 34560, while the sum is 32.

Adding to 13001345223044 its reverse (44032254310031), we get a palindrome (57033599533075).

The spelling of 13001345223044 in words is "thirteen trillion, one billion, three hundred forty-five million, two hundred twenty-three thousand, forty-four".