13424121018 has 48 divisors (see below), whose sum is σ = 36262564416. Its totient is φ = 3486784320.

The previous prime is 13424121001. The next prime is 13424121041. The reversal of 13424121018 is 81012142431.

13424121018 is a `hidden beast` number, since 13 + 424 + 1 + 210 + 18 = 666.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13424120982 and 13424121000.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 4841371 + ... + 4844142.

It is an arithmetic number, because the mean of its divisors is an integer number (755470092).

Almost surely, 2^13424121018 is an apocalyptic number.

13424121018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

13424121018 is an abundant number, since it is smaller than the sum of its proper divisors (22838443398).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13424121018 is a wasteful number, since it uses less digits than its factorization.

13424121018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9685539 (or 9685536 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 27.

Adding to 13424121018 its reverse (81012142431), we get a palindrome (94436263449).

The spelling of 13424121018 in words is "thirteen billion, four hundred twenty-four million, one hundred twenty-one thousand, eighteen".