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131320320311 = 5771409161527
BaseRepresentation
bin111101001001101001…
…1010001000100110111
3110112221221100110121002
41322103103101010313
54122421000222221
6140154442113515
712326145206465
oct1722323210467
9415857313532
10131320320311
1150768996344
122154aaab89b
13c4ca5a595b
1464da999835
153638c1980b
hex1e934d1137

131320320311 has 8 divisors (see below), whose sum is σ = 131642089440. Its totient is φ = 130998878208.

The previous prime is 131320320301. The next prime is 131320320337. The reversal of 131320320311 is 113023023131.

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 131320320311 - 26 = 131320320247 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320320301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 732230 + ... + 893756.

It is an arithmetic number, because the mean of its divisors is an integer number (16455261180).

Almost surely, 2131320320311 is an apocalyptic number.

131320320311 is a deficient number, since it is larger than the sum of its proper divisors (321769129).

131320320311 is a wasteful number, since it uses less digits than its factorization.

131320320311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 163513.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 131320320311 its reverse (113023023131), we get a palindrome (244343343442).

The spelling of 131320320311 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred twenty thousand, three hundred eleven".

Divisors: 1 577 1409 161527 812993 93201079 227591543 131320320311