13243344120100 has 18 divisors (see below), whose sum is σ = 28738056740834. Its totient is φ = 5297337648000.

The previous prime is 13243344120079. The next prime is 13243344120151. The reversal of 13243344120100 is 102144334231.

It is a happy number.

It can be written as a sum of positive squares in 3 ways, for example, as 1405381798144 + 11837962321956 = 1185488^2 + 3440634^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 66216720501 + ... + 66216720700.

Almost surely, 2^{13243344120100} is an apocalyptic number.

13243344120100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13243344120100 is an abundant number, since it is smaller than the sum of its proper divisors (15494712620734).

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

13243344120100 is a wasteful number, since it uses less digits than its factorization.

13243344120100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 132433441215 (or 132433441208 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 13243344120100 its reverse (102144334231), we get a palindrome (13345488454331).

The spelling of 13243344120100 in words is "thirteen trillion, two hundred forty-three billion, three hundred forty-four million, one hundred twenty thousand, one hundred".