131331531411211 has 4 divisors (see below), whose sum is σ = 131365145833192. Its totient is φ = 131297916989232.

The previous prime is 131331531411167. The next prime is 131331531411217. The reversal of 131331531411211 is 112114135133131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131331531411211 - 2¹⁷ = 131331531280139 is a prime.

It is a super-2 number, since 2×131331531411211² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131331531411217) 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, 16807205130 + ... + 16807212943.

It is an arithmetic number, because the mean of its divisors is an integer number (32841286458298).

Almost surely, 2^{131331531411211} is an apocalyptic number.

131331531411211 is a deficient number, since it is larger than the sum of its proper divisors (33614421981).

131331531411211 is an equidigital number, since it uses as much as digits as its factorization.

131331531411211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33614421980.

The product of its digits is 3240, while the sum is 31.

Adding to 131331531411211 its reverse (112114135133131), we get a palindrome (243445666544342).

The spelling of 131331531411211 in words is "one hundred thirty-one trillion, three hundred thirty-one billion, five hundred thirty-one million, four hundred eleven thousand, two hundred eleven".