13144405441523 has 4 divisors (see below), whose sum is σ = 13166797955640. Its totient is φ = 13122012927408.

The previous prime is 13144405441469. The next prime is 13144405441561. The reversal of 13144405441523 is 32514450444131.

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

It is a cyclic number.

It is not a de Polignac number, because 13144405441523 - 2²⁶ = 13144338332659 is a prime.

It is a super-2 number, since 2×13144405441523² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13144405441423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 11196256178 + ... + 11196257351.

It is an arithmetic number, because the mean of its divisors is an integer number (3291699488910).

Almost surely, 2^{13144405441523} is an apocalyptic number.

13144405441523 is a deficient number, since it is larger than the sum of its proper divisors (22392514117).

13144405441523 is an equidigital number, since it uses as much as digits as its factorization.

13144405441523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22392514116.

The product of its (nonzero) digits is 460800, while the sum is 41.

Adding to 13144405441523 its reverse (32514450444131), we get a palindrome (45658855885654).

The spelling of 13144405441523 in words is "thirteen trillion, one hundred forty-four billion, four hundred five million, four hundred forty-one thousand, five hundred twenty-three".