13121313341146 has 4 divisors (see below), whose sum is σ = 19681970011722. Its totient is φ = 6560656670572.

The previous prime is 13121313341119. The next prime is 13121313341159. The reversal of 13121313341146 is 64114331312131.

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., 7147126374921 + 5974186966225 = 2673411^2 + 2444215^2 .

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3280328335285 + ... + 3280328335288.

Almost surely, 2^{13121313341146} is an apocalyptic number.

13121313341146 is a deficient number, since it is larger than the sum of its proper divisors (6560656670576).

13121313341146 is an equidigital number, since it uses as much as digits as its factorization.

13121313341146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6560656670575.

The product of its digits is 15552, while the sum is 34.

Adding to 13121313341146 its reverse (64114331312131), we get a palindrome (77235644653277).

The spelling of 13121313341146 in words is "thirteen trillion, one hundred twenty-one billion, three hundred thirteen million, three hundred forty-one thousand, one hundred forty-six".