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131230303101 = 3219375549973
BaseRepresentation
bin111101000110111101…
…1111000001101111101
3110112201122222010012100
41322031323320031331
54122224424144401
6140141504455313
712324003112602
oct1721573701575
9415648863170
10131230303101
11507220a3057
122152491a539
13c4b4a48c31
1464cca466a9
153630d87b86
hex1e8def837d

131230303101 has 12 divisors (see below), whose sum is σ = 190537034428. Its totient is φ = 87033567744.

The previous prime is 131230303097. The next prime is 131230303153. The reversal of 131230303101 is 101303032131.

It is a happy number.

131230303101 is a `hidden beast` number, since 1 + 31 + 230 + 303 + 101 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 47188872900 + 84041430201 = 217230^2 + 289899^2 .

It is not a de Polignac number, because 131230303101 - 22 = 131230303097 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131230303801) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 37773250 + ... + 37776723.

Almost surely, 2131230303101 is an apocalyptic number.

It is an amenable number.

131230303101 is a deficient number, since it is larger than the sum of its proper divisors (59306731327).

131230303101 is a wasteful number, since it uses less digits than its factorization.

131230303101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 75550172 (or 75550169 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 18.

Adding to 131230303101 its reverse (101303032131), we get a palindrome (232533335232).

The spelling of 131230303101 in words is "one hundred thirty-one billion, two hundred thirty million, three hundred three thousand, one hundred one".

Divisors: 1 3 9 193 579 1737 75549973 226649919 679949757 14581144789 43743434367 131230303101