13121454368 has 48 divisors (see below), whose sum is σ = 29406597696. Its totient is φ = 5704976640.

The previous prime is 13121454331. The next prime is 13121454419. The reversal of 13121454368 is 86345412131.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 802271 + ... + 818462.

It is an arithmetic number, because the mean of its divisors is an integer number (612637452).

Almost surely, 2^13121454368 is an apocalyptic number.

It is an amenable number.

13121454368 is an abundant number, since it is smaller than the sum of its proper divisors (16285143328).

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

13121454368 is a wasteful number, since it uses less digits than its factorization.

13121454368 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1620777 (or 1620769 counting only the distinct ones).

The product of its digits is 69120, while the sum is 38.

Adding to 13121454368 its reverse (86345412131), we get a palindrome (99466866499).

The spelling of 13121454368 in words is "thirteen billion, one hundred twenty-one million, four hundred fifty-four thousand, three hundred sixty-eight".