131322201 has 4 divisors (see below), whose sum is σ = 175096272. Its totient is φ = 87548132.

The previous prime is 131322199. The next prime is 131322223. The reversal of 131322201 is 102223131.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 131322201 - 2¹ = 131322199 is a prime.

It is not an unprimeable number, because it can be changed into a prime (131322251) 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, 21887031 + ... + 21887036.

It is an arithmetic number, because the mean of its divisors is an integer number (43774068).

Almost surely, 2^131322201 is an apocalyptic number.

It is an amenable number.

131322201 is a deficient number, since it is larger than the sum of its proper divisors (43774071).

131322201 is an equidigital number, since it uses as much as digits as its factorization.

131322201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43774070.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 131322201 is about 11459.5899141287. The cubic root of 131322201 is about 508.2913484151.

Adding to 131322201 its reverse (102223131), we get a palindrome (233545332).

The spelling of 131322201 in words is "one hundred thirty-one million, three hundred twenty-two thousand, two hundred one".