13033121242 has 4 divisors (see below), whose sum is σ = 19549681866. Its totient is φ = 6516560620.

The previous prime is 13033121221. The next prime is 13033121243. The reversal of 13033121242 is 24212133031.

13033121242 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 9643436401 + 3389684841 = 98201^2 + 58221^2 .

It is not an unprimeable number, because it can be changed into a prime (13033121243) by changing a digit.

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, 3258280309 + ... + 3258280312.

Almost surely, 2^13033121242 is an apocalyptic number.

13033121242 is a deficient number, since it is larger than the sum of its proper divisors (6516560624).

13033121242 is an equidigital number, since it uses as much as digits as its factorization.

13033121242 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6516560623.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 13033121242 its reverse (24212133031), we get a palindrome (37245254273).

The spelling of 13033121242 in words is "thirteen billion, thirty-three million, one hundred twenty-one thousand, two hundred forty-two".