13204545320242 has 4 divisors (see below), whose sum is σ = 19806817980366. Its totient is φ = 6602272660120.

The previous prime is 13204545320227. The next prime is 13204545320243. The reversal of 13204545320242 is 24202354540231.

It is a happy number.

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., 13190341686201 + 14203634041 = 3631851^2 + 119179^2 .

It is a super-2 number, since 2×13204545320242² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (13204545320243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3301136330059 + ... + 3301136330062.

Almost surely, 2^{13204545320242} is an apocalyptic number.

13204545320242 is a deficient number, since it is larger than the sum of its proper divisors (6602272660124).

13204545320242 is an equidigital number, since it uses as much as digits as its factorization.

13204545320242 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6602272660123.

The product of its (nonzero) digits is 230400, while the sum is 37.

Adding to 13204545320242 its reverse (24202354540231), we get a palindrome (37406899860473).

The spelling of 13204545320242 in words is "thirteen trillion, two hundred four billion, five hundred forty-five million, three hundred twenty thousand, two hundred forty-two".