13121200003121 has 8 divisors (see below), whose sum is σ = 15000588330624. Its totient is φ = 11243044471680.

The previous prime is 13121200003091. The next prime is 13121200003201. The reversal of 13121200003121 is 12130000212131.

13121200003121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 13121200003121 - 2¹⁴ = 13121199986737 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13121200003121.

It is not an unprimeable number, because it can be changed into a prime (13121200093121) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 308176205 + ... + 308218778.

It is an arithmetic number, because the mean of its divisors is an integer number (1875073541328).

Almost surely, 2^{13121200003121} is an apocalyptic number.

It is an amenable number.

13121200003121 is a deficient number, since it is larger than the sum of its proper divisors (1879388327503).

13121200003121 is an equidigital number, since it uses as much as digits as its factorization.

13121200003121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 616398031.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 13121200003121 its reverse (12130000212131), we get a palindrome (25251200215252).

The spelling of 13121200003121 in words is "thirteen trillion, one hundred twenty-one billion, two hundred million, three thousand, one hundred twenty-one".