13321001041042 has 4 divisors (see below), whose sum is σ = 19981501561566. Its totient is φ = 6660500520520.

The previous prime is 13321001041037. The next prime is 13321001041043. The reversal of 13321001041042 is 24014010012331.

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., 11357580750201 + 1963420290841 = 3370101^2 + 1401221^2 .

It is not an unprimeable number, because it can be changed into a prime (13321001041043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3330250260259 + ... + 3330250260262.

Almost surely, 2^{13321001041042} is an apocalyptic number.

13321001041042 is a deficient number, since it is larger than the sum of its proper divisors (6660500520524).

13321001041042 is an equidigital number, since it uses as much as digits as its factorization.

13321001041042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6660500520523.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 13321001041042 its reverse (24014010012331), we get a palindrome (37335011053373).

The spelling of 13321001041042 in words is "thirteen trillion, three hundred twenty-one billion, one million, forty-one thousand, forty-two".