13331042243242 has 16 divisors (see below), whose sum is σ = 20001582335880. Its totient is φ = 6663848285952.

The previous prime is 13331042243227. The next prime is 13331042243251. The reversal of 13331042243242 is 24234224013331.

It can be written as a sum of positive squares in 4 ways, for example, as 6894820388401 + 6436221854841 = 2625799^2 + 2536971^2 .

It is a super-2 number, since 2×13331042243242² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13331042243198 and 13331042243207.

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 7 ways as a sum of consecutive naturals, for example, 363096678 + ... + 363133390.

Almost surely, 2^{13331042243242} is an apocalyptic number.

13331042243242 is a deficient number, since it is larger than the sum of its proper divisors (6670540092638).

13331042243242 is a wasteful number, since it uses less digits than its factorization.

13331042243242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 77337.

The product of its (nonzero) digits is 82944, while the sum is 34.

Adding to 13331042243242 its reverse (24234224013331), we get a palindrome (37565266256573).

The spelling of 13331042243242 in words is "thirteen trillion, three hundred thirty-one billion, forty-two million, two hundred forty-three thousand, two hundred forty-two".