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131320323011 = 179779636339
BaseRepresentation
bin111101001001101001…
…1010001101111000011
3110112221221100121022002
41322103103101233003
54122421000314021
6140154442134215
712326145220403
oct1722323215703
9415857317262
10131320323011
1150768998379
122154aab136b
13c4ca5a6c57
1464da99a803
153638c1a50b
hex1e934d1bc3

131320323011 has 8 divisors (see below), whose sum is σ = 140478503760. Its totient is φ = 122321415168.

The previous prime is 131320322999. The next prime is 131320323047. The reversal of 131320323011 is 110323023131.

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 131320323011 - 210 = 131320321987 is a prime.

It is a super-2 number, since 2×1313203230112 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131320323311) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39816521 + ... + 39819818.

It is an arithmetic number, because the mean of its divisors is an integer number (17559812970).

Almost surely, 2131320323011 is an apocalyptic number.

131320323011 is a deficient number, since it is larger than the sum of its proper divisors (9158180749).

131320323011 is an equidigital number, since it uses as much as digits as its factorization.

131320323011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 79636453.

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

Adding to 131320323011 its reverse (110323023131), we get a palindrome (241643346142).

The spelling of 131320323011 in words is "one hundred thirty-one billion, three hundred twenty million, three hundred twenty-three thousand, eleven".

Divisors: 1 17 97 1649 79636339 1353817763 7724724883 131320323011