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131200433201 = 294524152869
BaseRepresentation
bin111101000110000100…
…1111011110000110001
3110112122120202120101202
41322030021323300301
54122144302330301
6140134520340545
712323161165415
oct1721411736061
9415576676352
10131200433201
1150707251392
1221516914755
13c4ab7bb236
1464c8aacd45
15362d43766b
hex1e8c27bc31

131200433201 has 4 divisors (see below), whose sum is σ = 135724586100. Its totient is φ = 126676280304.

The previous prime is 131200433167. The next prime is 131200433261. The reversal of 131200433201 is 102334002131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 102334002131 = 401272550253.

It can be written as a sum of positive squares in 2 ways, for example, as 96845440000 + 34354993201 = 311200^2 + 185351^2 .

It is a cyclic number.

It is not a de Polignac number, because 131200433201 - 214 = 131200416817 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131200433261) 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 3 ways as a sum of consecutive naturals, for example, 2262076406 + ... + 2262076463.

It is an arithmetic number, because the mean of its divisors is an integer number (33931146525).

Almost surely, 2131200433201 is an apocalyptic number.

It is an amenable number.

131200433201 is a deficient number, since it is larger than the sum of its proper divisors (4524152899).

131200433201 is an equidigital number, since it uses as much as digits as its factorization.

131200433201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4524152898.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 131200433201 its reverse (102334002131), we get a palindrome (233534435332).

The spelling of 131200433201 in words is "one hundred thirty-one billion, two hundred million, four hundred thirty-three thousand, two hundred one".

Divisors: 1 29 4524152869 131200433201