13121202100231 has 4 divisors (see below), whose sum is σ = 13121209408000. Its totient is φ = 13121194792464.

The previous prime is 13121202100213. The next prime is 13121202100243. The reversal of 13121202100231 is 13200120212131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13121202100231 - 2⁷ = 13121202100103 is a prime.

It is a super-2 number, since 2×13121202100231² (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 = 13121202100199 and 13121202100208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121202100291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1108090 + ... + 5241208.

It is an arithmetic number, because the mean of its divisors is an integer number (3280302352000).

Almost surely, 2^{13121202100231} is an apocalyptic number.

13121202100231 is a deficient number, since it is larger than the sum of its proper divisors (7307769).

13121202100231 is an equidigital number, since it uses as much as digits as its factorization.

13121202100231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7307768.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 13121202100231 its reverse (13200120212131), we get a palindrome (26321322312362).

The spelling of 13121202100231 in words is "thirteen trillion, one hundred twenty-one billion, two hundred two million, one hundred thousand, two hundred thirty-one".