13121030111203 has 16 divisors (see below), whose sum is σ = 15877651760640. Its totient is φ = 10584964215936.

The previous prime is 13121030111179. The next prime is 13121030111309. The reversal of 13121030111203 is 30211103012131.

It is a cyclic number.

It is not a de Polignac number, because 13121030111203 - 2¹⁷ = 13121029980131 is a prime.

It is a super-2 number, since 2×13121030111203² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121030115203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 26708058 + ... + 27194896.

It is an arithmetic number, because the mean of its divisors is an integer number (992353235040).

Almost surely, 2^{13121030111203} is an apocalyptic number.

13121030111203 is a deficient number, since it is larger than the sum of its proper divisors (2756621649437).

13121030111203 is a wasteful number, since it uses less digits than its factorization.

13121030111203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 713346.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 13121030111203 its reverse (30211103012131), we get a palindrome (43332133123334).

The spelling of 13121030111203 in words is "thirteen trillion, one hundred twenty-one billion, thirty million, one hundred eleven thousand, two hundred three".