13423402421144 has 8 divisors (see below), whose sum is σ = 25168879539660. Its totient is φ = 6711701210568.

The previous prime is 13423402421081. The next prime is 13423402421257. The reversal of 13423402421144 is 44112420432431.

It is a tau number, because it is divible by the number of its divisors (8).

It is a super-2 number, since 2×13423402421144² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 838962651314 + ... + 838962651329.

Almost surely, 2^{13423402421144} is an apocalyptic number.

It is an amenable number.

13423402421144 is a deficient number, since it is larger than the sum of its proper divisors (11745477118516).

13423402421144 is a wasteful number, since it uses less digits than its factorization.

13423402421144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1677925302649 (or 1677925302645 counting only the distinct ones).

The product of its (nonzero) digits is 73728, while the sum is 35.

Adding to 13423402421144 its reverse (44112420432431), we get a palindrome (57535822853575).

The spelling of 13423402421144 in words is "thirteen trillion, four hundred twenty-three billion, four hundred two million, four hundred twenty-one thousand, one hundred forty-four".