131210201 has 4 divisors (see below), whose sum is σ = 133058304. Its totient is φ = 129362100.

The previous prime is 131210173. The next prime is 131210213. The reversal of 131210201 is 102012131.

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 131210201 - 2⁶ = 131210137 is a prime.

It is a super-2 number, since 2×131210201² = 34432233692920802, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131210221) 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, 923945 + ... + 924086.

It is an arithmetic number, because the mean of its divisors is an integer number (33264576).

Almost surely, 2^131210201 is an apocalyptic number.

It is an amenable number.

131210201 is a deficient number, since it is larger than the sum of its proper divisors (1848103).

131210201 is an equidigital number, since it uses as much as digits as its factorization.

131210201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1848102.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 131210201 is about 11454.7021349313. The cubic root of 131210201 is about 508.1468061560.

Adding to 131210201 its reverse (102012131), we get a palindrome (233222332).

The spelling of 131210201 in words is "one hundred thirty-one million, two hundred ten thousand, two hundred one".