13121210232001 has 2 divisors, whose sum is σ = 13121210232002. Its totient is φ = 13121210232000.

The previous prime is 13121210231917. The next prime is 13121210232023. The reversal of 13121210232001 is 10023201212131.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 12187087982001 + 934122250000 = 3491001^2 + 966500^2 .

It is a cyclic number.

It is not a de Polignac number, because 13121210232001 - 2³⁷ = 12983771278529 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 13121210232001.

It is not a weakly prime, because it can be changed into another prime (13121210232071) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6560605116000 + 6560605116001.

It is an arithmetic number, because the mean of its divisors is an integer number (6560605116001).

Almost surely, 2^{13121210232001} is an apocalyptic number.

It is an amenable number.

13121210232001 is a deficient number, since it is larger than the sum of its proper divisors (1).

13121210232001 is an equidigital number, since it uses as much as digits as its factorization.

13121210232001 is an odious number, because the sum of its binary digits is odd.

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

Adding to 13121210232001 its reverse (10023201212131), we get a palindrome (23144411444132).

The spelling of 13121210232001 in words is "thirteen trillion, one hundred twenty-one billion, two hundred ten million, two hundred thirty-two thousand, one".