131021013211 has 12 divisors (see below), whose sum is σ = 144898381096. Its totient is φ = 118379257920.

The previous prime is 131021013199. The next prime is 131021013271. The reversal of 131021013211 is 112310120131.

It is a happy number.

It is not a de Polignac number, because 131021013211 - 2⁹ = 131021012699 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131021013271) 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 11 ways as a sum of consecutive naturals, for example, 3301806 + ... + 3341251.

Almost surely, 2^131021013211 is an apocalyptic number.

131021013211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

131021013211 is a deficient number, since it is larger than the sum of its proper divisors (13877367885).

131021013211 is a wasteful number, since it uses less digits than its factorization.

131021013211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6643242 (or 6643231 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 131021013211 its reverse (112310120131), we get a palindrome (243331133342).

The spelling of 131021013211 in words is "one hundred thirty-one billion, twenty-one million, thirteen thousand, two hundred eleven".