13121030120200 has 48 divisors (see below), whose sum is σ = 30506647957380. Its totient is φ = 5248368533760.

The previous prime is 13121030120183. The next prime is 13121030120221. The reversal of 13121030120200 is 202103012131.

It can be written as a sum of positive squares in 6 ways, for example, as 2854119663396 + 10266910456804 = 1689414^2 + 3204202^2 .

It is a super-2 number, since 2×13121030120200² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 35924902 + ... + 36288298.

Almost surely, 2^{13121030120200} is an apocalyptic number.

13121030120200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13121030120200 is an abundant number, since it is smaller than the sum of its proper divisors (17385617837180).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13121030120200 is a wasteful number, since it uses less digits than its factorization.

13121030120200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 543946 (or 543937 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 13121030120200 its reverse (202103012131), we get a palindrome (13323133132331).

The spelling of 13121030120200 in words is "thirteen trillion, one hundred twenty-one billion, thirty million, one hundred twenty thousand, two hundred".