131131332211 has 4 divisors (see below), whose sum is σ = 143052362424. Its totient is φ = 119210302000.

The previous prime is 131131332191. The next prime is 131131332223. The reversal of 131131332211 is 112233131131.

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 131131332211 - 2¹⁹ = 131130807923 is a prime.

It is a super-2 number, since 2×131131332211² (a number of 23 digits) contains 22 as substring.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131131333211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5960515090 + ... + 5960515111.

It is an arithmetic number, because the mean of its divisors is an integer number (35763090606).

Almost surely, 2^131131332211 is an apocalyptic number.

131131332211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131131332211 is a deficient number, since it is larger than the sum of its proper divisors (11921030213).

131131332211 is a wasteful number, since it uses less digits than its factorization.

131131332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11921030212.

The product of its digits is 324, while the sum is 22.

Adding to 131131332211 its reverse (112233131131), we get a palindrome (243364463342).

The spelling of 131131332211 in words is "one hundred thirty-one billion, one hundred thirty-one million, three hundred thirty-two thousand, two hundred eleven".