131211440134321 has 16 divisors (see below), whose sum is σ = 132034947464448. Its totient is φ = 130390389360000.

The previous prime is 131211440134289. The next prime is 131211440134363. The reversal of 131211440134321 is 123431044112131.

It is a cyclic number.

It is not a de Polignac number, because 131211440134321 - 2⁵ = 131211440134289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131211440137321) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008315141 + ... + 1008445261.

It is an arithmetic number, because the mean of its divisors is an integer number (8252184216528).

Almost surely, 2^{131211440134321} is an apocalyptic number.

It is an amenable number.

131211440134321 is a deficient number, since it is larger than the sum of its proper divisors (823507330127).

131211440134321 is a wasteful number, since it uses less digits than its factorization.

131211440134321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139512.

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 131211440134321 its reverse (123431044112131), we get a palindrome (254642484246452).

The spelling of 131211440134321 in words is "one hundred thirty-one trillion, two hundred eleven billion, four hundred forty million, one hundred thirty-four thousand, three hundred twenty-one".