13440422420243 has 144 divisors (see below), whose sum is σ = 18009747360000. Its totient is φ = 9968401707264.

The previous prime is 13440422420239. The next prime is 13440422420279. The reversal of 13440422420243 is 34202422404431.

It is not a de Polignac number, because 13440422420243 - 2² = 13440422420239 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13440422420213) by changing a digit.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 6168159728 + ... + 6168161906.

It is an arithmetic number, because the mean of its divisors is an integer number (125067690000).

Almost surely, 2^{13440422420243} is an apocalyptic number.

13440422420243 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13440422420243 is a deficient number, since it is larger than the sum of its proper divisors (4569324939757).

13440422420243 is a wasteful number, since it uses less digits than its factorization.

13440422420243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2634 (or 2614 counting only the distinct ones).

The product of its (nonzero) digits is 147456, while the sum is 35.

Adding to 13440422420243 its reverse (34202422404431), we get a palindrome (47642844824674).

The spelling of 13440422420243 in words is "thirteen trillion, four hundred forty billion, four hundred twenty-two million, four hundred twenty thousand, two hundred forty-three".