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131444140420321 = 3832671712845611
BaseRepresentation
bin11101111000110000111001…
…010011000010110011100001
3122020101221022010222202122221
4131320300321103002303201
5114212040044421422241
61143320334323031041
736454345222556551
oct3570607123026341
9566357263882587
10131444140420321
1138978168586633
12128aa90880b481
13584618ac89761
142465d04bdd161
15102e26c9515d1
hex778c394c2ce1

131444140420321 has 8 divisors (see below), whose sum is σ = 131792279583744. Its totient is φ = 131096027002320.

The previous prime is 131444140420301. The next prime is 131444140420337. The reversal of 131444140420321 is 123024041444131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131444140420321 - 225 = 131444106865889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131444140420301) 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 7 ways as a sum of consecutive naturals, for example, 3809806 + ... + 16655416.

It is an arithmetic number, because the mean of its divisors is an integer number (16474034947968).

Almost surely, 2131444140420321 is an apocalyptic number.

It is an amenable number.

131444140420321 is a deficient number, since it is larger than the sum of its proper divisors (348139163423).

131444140420321 is a wasteful number, since it uses less digits than its factorization.

131444140420321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12872711.

The product of its (nonzero) digits is 36864, while the sum is 34.

Adding to 131444140420321 its reverse (123024041444131), we get a palindrome (254468181864452).

The spelling of 131444140420321 in words is "one hundred thirty-one trillion, four hundred forty-four billion, one hundred forty million, four hundred twenty thousand, three hundred twenty-one".

Divisors: 1 383 26717 10232611 12845611 4919869013 343196189087 131444140420321