13423401510505 has 16 divisors (see below), whose sum is σ = 18489626046720. Its totient is φ = 9164423333952.

The previous prime is 13423401510499. The next prime is 13423401510511. The reversal of 13423401510505 is 50501510432431.

It is an interprime number because it is at equal distance from previous prime (13423401510499) and next prime (13423401510511).

It is a cyclic number.

It is not a de Polignac number, because 13423401510505 - 2¹¹ = 13423401508457 is a prime.

It is a super-2 number, since 2×13423401510505² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 837384469 + ... + 837400498.

It is an arithmetic number, because the mean of its divisors is an integer number (1155601627920).

Almost surely, 2^{13423401510505} is an apocalyptic number.

It is an amenable number.

13423401510505 is a deficient number, since it is larger than the sum of its proper divisors (5066224536215).

13423401510505 is a wasteful number, since it uses less digits than its factorization.

13423401510505 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1674785208.

The product of its (nonzero) digits is 36000, while the sum is 34.

Adding to 13423401510505 its reverse (50501510432431), we get a palindrome (63924911942936).

The spelling of 13423401510505 in words is "thirteen trillion, four hundred twenty-three billion, four hundred one million, five hundred ten thousand, five hundred five".