131242211 has 8 divisors (see below), whose sum is σ = 132204048. Its totient is φ = 130284000.

The previous prime is 131242201. The next prime is 131242217. The reversal of 131242211 is 112242131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131242211 - 2¹⁸ = 130980067 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 131242211.

It is not an unprimeable number, because it can be changed into a prime (131242217) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 139001 + ... + 139941.

It is an arithmetic number, because the mean of its divisors is an integer number (16525506).

Almost surely, 2^131242211 is an apocalyptic number.

131242211 is a deficient number, since it is larger than the sum of its proper divisors (961837).

131242211 is an equidigital number, since it uses as much as digits as its factorization.

131242211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1813.

The product of its digits is 96, while the sum is 17.

The square root of 131242211 is about 11456.0992925166. The cubic root of 131242211 is about 508.1881252419.

Adding to 131242211 its reverse (112242131), we get a palindrome (243484342).

The spelling of 131242211 in words is "one hundred thirty-one million, two hundred forty-two thousand, two hundred eleven".