13123000220201 has 4 divisors (see below), whose sum is σ = 13127321263812. Its totient is φ = 13118679176592.

The previous prime is 13123000220173. The next prime is 13123000220203. The reversal of 13123000220201 is 10202200032131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12474854464576 + 648145755625 = 3531976^2 + 805075^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13123000220201 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 13123000220201.

It is not an unprimeable number, because it can be changed into a prime (13123000220203) 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, 2160517250 + ... + 2160523323.

It is an arithmetic number, because the mean of its divisors is an integer number (3281830315953).

Almost surely, 2^{13123000220201} is an apocalyptic number.

It is an amenable number.

13123000220201 is a deficient number, since it is larger than the sum of its proper divisors (4321043611).

13123000220201 is an equidigital number, since it uses as much as digits as its factorization.

13123000220201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4321043610.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 13123000220201 its reverse (10202200032131), we get a palindrome (23325200252332).

The spelling of 13123000220201 in words is "thirteen trillion, one hundred twenty-three billion, two hundred twenty thousand, two hundred one".