13121121320210 has 32 divisors (see below), whose sum is σ = 23690461217472. Its totient is φ = 5232351579840.

The previous prime is 13121121320191. The next prime is 13121121320261. The reversal of 13121121320210 is 1202312112131.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 83475812 + ... + 83632848.

It is an arithmetic number, because the mean of its divisors is an integer number (740326913046).

Almost surely, 2^{13121121320210} is an apocalyptic number.

13121121320210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121121320210 is a deficient number, since it is larger than the sum of its proper divisors (10569339897262).

13121121320210 is a wasteful number, since it uses less digits than its factorization.

13121121320210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182618.

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13121121320210 its reverse (1202312112131), we get a palindrome (14323433432341).

The spelling of 13121121320210 in words is "thirteen trillion, one hundred twenty-one billion, one hundred twenty-one million, three hundred twenty thousand, two hundred ten".