131211210013422 has 256 divisors, whose sum is σ = 337767184465920. Its totient is φ = 32993971776000.

The previous prime is 131211210013399. The next prime is 131211210013439. The reversal of 131211210013422 is 224310012112131.

It is a junction number, because it is equal to n+sod(n) for n = 131211210013392 and 131211210013401.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 2344410883 + ... + 2344466849.

It is an arithmetic number, because the mean of its divisors is an integer number (1319403064320).

Almost surely, 2^{131211210013422} is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 131211210013422, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (168883592232960).

131211210013422 is an abundant number, since it is smaller than the sum of its proper divisors (206555974452498).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131211210013422 is a wasteful number, since it uses less digits than its factorization.

131211210013422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57207.

The product of its (nonzero) digits is 576, while the sum is 24.

Adding to 131211210013422 its reverse (224310012112131), we get a palindrome (355521222125553).

The spelling of 131211210013422 in words is "one hundred thirty-one trillion, two hundred eleven billion, two hundred ten million, thirteen thousand, four hundred twenty-two".