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131012200121311 = 1011191295623969
BaseRepresentation
bin11101110010011110100111…
…101001100100001111011111
3122011212122101111010002102201
4131302132213221210033133
5114133000441212340221
61142350101315232331
736411214310605345
oct3562364751441737
9564778344102381
10131012200121311
1138820a6453a903
121283b0608a86a7
1358145222b2b02
14244d04aa37995
151022ddbe10891
hex7727a7a643df

131012200121311 has 4 divisors (see below), whose sum is σ = 131013495846400. Its totient is φ = 131010904396224.

The previous prime is 131012200121291. The next prime is 131012200121317. The reversal of 131012200121311 is 113121002210131.

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 131012200121311 - 27 = 131012200121183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131012200121317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 647710866 + ... + 647913103.

It is an arithmetic number, because the mean of its divisors is an integer number (32753373961600).

Almost surely, 2131012200121311 is an apocalyptic number.

131012200121311 is a deficient number, since it is larger than the sum of its proper divisors (1295725089).

131012200121311 is a wasteful number, since it uses less digits than its factorization.

131012200121311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1295725088.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 131012200121311 its reverse (113121002210131), we get a palindrome (244133202331442).

The spelling of 131012200121311 in words is "one hundred thirty-one trillion, twelve billion, two hundred million, one hundred twenty-one thousand, three hundred eleven".

Divisors: 1 101119 1295623969 131012200121311