13440042312002 has 4 divisors (see below), whose sum is σ = 20160063468006. Its totient is φ = 6720021156000.

The previous prime is 13440042311957. The next prime is 13440042312023. The reversal of 13440042312002 is 20021324004431.

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., 13439636652121 + 405659881 = 3666011^2 + 20141^2 .

It is an unprimeable number.

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, 3360010577999 + ... + 3360010578002.

Almost surely, 2^{13440042312002} is an apocalyptic number.

13440042312002 is a deficient number, since it is larger than the sum of its proper divisors (6720021156004).

13440042312002 is an equidigital number, since it uses as much as digits as its factorization.

13440042312002 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6720021156003.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 13440042312002 its reverse (20021324004431), we get a palindrome (33461366316433).

The spelling of 13440042312002 in words is "thirteen trillion, four hundred forty billion, forty-two million, three hundred twelve thousand, two".