131021332211 has 12 divisors (see below), whose sum is σ = 166268259000. Its totient is φ = 102094544160.

The previous prime is 131021332147. The next prime is 131021332223. The reversal of 131021332211 is 112233120131.

It is a happy number.

It is not a de Polignac number, because 131021332211 - 2⁶ = 131021332147 is a prime.

It is a super-2 number, since 2×131021332211² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131021332411) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 121540586 + ... + 121541663.

It is an arithmetic number, because the mean of its divisors is an integer number (13855688250).

Almost surely, 2^131021332211 is an apocalyptic number.

131021332211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131021332211 is a deficient number, since it is larger than the sum of its proper divisors (35246926789).

131021332211 is a wasteful number, since it uses less digits than its factorization.

131021332211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 243082274 (or 243082267 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 131021332211 its reverse (112233120131), we get a palindrome (243254452342).

The spelling of 131021332211 in words is "one hundred thirty-one billion, twenty-one million, three hundred thirty-two thousand, two hundred eleven".