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131200323011 = 215696082819
BaseRepresentation
bin111101000110000100…
…1100000110111000011
3110112122120112222020122
41322030021200313003
54122144240314021
6140134514130455
712323160226232
oct1721411406703
9415576488218
10131200323011
115070718661a
1221516880a2b
13c4ab780034
1464c8a80b19
15362d414bab
hex1e8c260dc3

131200323011 has 4 divisors (see below), whose sum is σ = 131206427400. Its totient is φ = 131194218624.

The previous prime is 131200322963. The next prime is 131200323013. The reversal of 131200323011 is 110323002131.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131200323011 - 26 = 131200322947 is a prime.

It is a super-2 number, since 2×1312003230112 (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 (131200323013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3019841 + ... + 3062978.

It is an arithmetic number, because the mean of its divisors is an integer number (32801606850).

Almost surely, 2131200323011 is an apocalyptic number.

131200323011 is a deficient number, since it is larger than the sum of its proper divisors (6104389).

131200323011 is an equidigital number, since it uses as much as digits as its factorization.

131200323011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104388.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 131200323011 its reverse (110323002131), we get a palindrome (241523325142).

The spelling of 131200323011 in words is "one hundred thirty-one billion, two hundred million, three hundred twenty-three thousand, eleven".

Divisors: 1 21569 6082819 131200323011