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131231130011 = 1391496336301
BaseRepresentation
bin111101000110111111…
…1000010000110011011
3110112201201112010111122
41322031333002012123
54122230132130021
6140141534315455
712324013125452
oct1721577020633
9415651463448
10131231130011
1150722608353
1221525058b8b
13c4b4c78427
1464ccbbdb99
153630e9cbab
hex1e8dfc219b

131231130011 has 8 divisors (see below), whose sum is σ = 133062342000. Its totient is φ = 129412591200.

The previous prime is 131231129999. The next prime is 131231130047. The reversal of 131231130011 is 110031132131.

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 131231130011 - 230 = 130157388187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131231130311) 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, 3147440 + ... + 3188861.

It is an arithmetic number, because the mean of its divisors is an integer number (16632792750).

Almost surely, 2131231130011 is an apocalyptic number.

131231130011 is a deficient number, since it is larger than the sum of its proper divisors (1831211989).

131231130011 is a wasteful number, since it uses less digits than its factorization.

131231130011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6336589.

The product of its (nonzero) digits is 54, while the sum is 17.

Adding to 131231130011 its reverse (110031132131), we get a palindrome (241262262142).

The spelling of 131231130011 in words is "one hundred thirty-one billion, two hundred thirty-one million, one hundred thirty thousand, eleven".

Divisors: 1 139 149 20711 6336301 880745839 944108849 131231130011