13121330012231 has 16 divisors (see below), whose sum is σ = 15212083304448. Its totient is φ = 11084751720000.

The previous prime is 13121330012183. The next prime is 13121330012269. The reversal of 13121330012231 is 13221003312131.

It is not a de Polignac number, because 13121330012231 - 2¹⁴ = 13121329995847 is a prime.

It is a super-2 number, since 2×13121330012231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13121330012197 and 13121330012206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121330014231) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2907215 + ... + 5890208.

It is an arithmetic number, because the mean of its divisors is an integer number (950755206528).

Almost surely, 2^{13121330012231} is an apocalyptic number.

13121330012231 is a deficient number, since it is larger than the sum of its proper divisors (2090753292217).

13121330012231 is an equidigital number, since it uses as much as digits as its factorization.

13121330012231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8800502.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13121330012231 its reverse (13221003312131), we get a palindrome (26342333324362).

The spelling of 13121330012231 in words is "thirteen trillion, one hundred twenty-one billion, three hundred thirty million, twelve thousand, two hundred thirty-one".