13131520244 has 6 divisors (see below), whose sum is σ = 22980160434. Its totient is φ = 6565760120.

The previous prime is 13131520163. The next prime is 13131520271. The reversal of 13131520244 is 44202513131.

It is a happy number.

13131520244 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 12636457744 + 495062500 = 112412^2 + 22250^2 .

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1641440027 + ... + 1641440034.

It is an arithmetic number, because the mean of its divisors is an integer number (3830026739).

Almost surely, 2^13131520244 is an apocalyptic number.

It is an amenable number.

13131520244 is a deficient number, since it is larger than the sum of its proper divisors (9848640190).

13131520244 is a wasteful number, since it uses less digits than its factorization.

13131520244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3282880065 (or 3282880063 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 13131520244 in words is "thirteen billion, one hundred thirty-one million, five hundred twenty thousand, two hundred forty-four".