131420213244 has 36 divisors (see below), whose sum is σ = 335305787544. Its totient is φ = 43397327712.

The previous prime is 131420213233. The next prime is 131420213269. The reversal of 131420213244 is 442312024131.

131420213244 is a `hidden beast` number, since 1 + 3 + 1 + 420 + 213 + 24 + 4 = 666.

It is a tau number, because it is divible by the number of its divisors (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 17054847 + ... + 17062550.

It is an arithmetic number, because the mean of its divisors is an integer number (9314049654).

Almost surely, 2^131420213244 is an apocalyptic number.

It is an amenable number.

131420213244 is an abundant number, since it is smaller than the sum of its proper divisors (203885574300).

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

131420213244 is a wasteful number, since it uses less digits than its factorization.

131420213244 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34117514 (or 34117509 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 27.

Adding to 131420213244 its reverse (442312024131), we get a palindrome (573732237375).

The spelling of 131420213244 in words is "one hundred thirty-one billion, four hundred twenty million, two hundred thirteen thousand, two hundred forty-four".