13031220133201 has 4 divisors (see below), whose sum is σ = 13031494516404. Its totient is φ = 13030945750000.

The previous prime is 13031220133189. The next prime is 13031220133271. The reversal of 13031220133201 is 10233102213031.

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 2558876923201 + 10472343210000 = 1599649^2 + 3236100^2 .

It is a cyclic number.

It is not a de Polignac number, because 13031220133201 - 2⁴³ = 4235127110993 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13031220133271) 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, 137120350 + ... + 137215351.

It is an arithmetic number, because the mean of its divisors is an integer number (3257873629101).

Almost surely, 2^{13031220133201} is an apocalyptic number.

It is an amenable number.

13031220133201 is a deficient number, since it is larger than the sum of its proper divisors (274383203).

13031220133201 is an equidigital number, since it uses as much as digits as its factorization.

13031220133201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 274383202.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 13031220133201 its reverse (10233102213031), we get a palindrome (23264322346232).

The spelling of 13031220133201 in words is "thirteen trillion, thirty-one billion, two hundred twenty million, one hundred thirty-three thousand, two hundred one".