13121320130210 has 16 divisors (see below), whose sum is σ = 23618502747000. Its totient is φ = 5248499938176.

The previous prime is 13121320130197. The next prime is 13121320130221. The reversal of 13121320130210 is 1203102312131.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 12988044755449 + 133275374761 = 3603893^2 + 365069^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1498985 + ... + 5337564.

Almost surely, 2^{13121320130210} is an apocalyptic number.

13121320130210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121320130210 is a deficient number, since it is larger than the sum of its proper divisors (10497182616790).

13121320130210 is a wasteful number, since it uses less digits than its factorization.

13121320130210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7028485.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 13121320130210 its reverse (1203102312131), we get a palindrome (14324422442341).

The spelling of 13121320130210 in words is "thirteen trillion, one hundred twenty-one billion, three hundred twenty million, one hundred thirty thousand, two hundred ten".