131331202201 has 4 divisors (see below), whose sum is σ = 131333802804. Its totient is φ = 131328601600.

The previous prime is 131331202153. The next prime is 131331202213. The reversal of 131331202201 is 102202133131.

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 40563974025 + 90767228176 = 201405^2 + 301276^2 .

It is a cyclic number.

It is not a de Polignac number, because 131331202201 - 2⁷ = 131331202073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131331202231) 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, 1223020 + ... + 1326061.

It is an arithmetic number, because the mean of its divisors is an integer number (32833450701).

Almost surely, 2^131331202201 is an apocalyptic number.

It is an amenable number.

131331202201 is a deficient number, since it is larger than the sum of its proper divisors (2600603).

131331202201 is an equidigital number, since it uses as much as digits as its factorization.

131331202201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2600602.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 131331202201 its reverse (102202133131), we get a palindrome (233533335332).

The spelling of 131331202201 in words is "one hundred thirty-one billion, three hundred thirty-one million, two hundred two thousand, two hundred one".