13513515022242 has 12 divisors (see below), whose sum is σ = 29279282548230. Its totient is φ = 4504505007408.

The previous prime is 13513515022229. The next prime is 13513515022243. The reversal of 13513515022242 is 24222051531531.

13513515022242 is a `hidden beast` number, since 1 + 3 + 513 + 51 + 50 + 2 + 2 + 2 + 42 = 666.

It can be written as a sum of positive squares in only one way, i.e., 9806661770481 + 3706853251761 = 3131559^2 + 1925319^2 .

It is a junction number, because it is equal to n+sod(n) for n = 13513515022197 and 13513515022206.

It is not an unprimeable number, because it can be changed into a prime (13513515022243) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 375375417267 + ... + 375375417302.

Almost surely, 2^{13513515022242} is an apocalyptic number.

13513515022242 is an abundant number, since it is smaller than the sum of its proper divisors (15765767525988).

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

13513515022242 is a wasteful number, since it uses less digits than its factorization.

13513515022242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 750750834577 (or 750750834574 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 13513515022242 its reverse (24222051531531), we get a palindrome (37735566553773).

The spelling of 13513515022242 in words is "thirteen trillion, five hundred thirteen billion, five hundred fifteen million, twenty-two thousand, two hundred forty-two".