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131313113321101 = 134699760999881
BaseRepresentation
bin11101110110110110110111…
…011110010100111010001101
3122012221102002122101110210021
4131312312313132110322031
5114202413224002233401
61143140224513342141
736442026234604045
oct3566666736247215
9565842078343707
10131313113321101
1138927640164678
121288943bb67951
135836a0937a20a
14245d835170725
15102ab4e8572a1
hex776db7794e8d

131313113321101 has 8 divisors (see below), whose sum is σ = 131325522809400. Its totient is φ = 131300704254720.

The previous prime is 131313113321069. The next prime is 131313113321111. The reversal of 131313113321101 is 101123311313131.

It can be written as a sum of positive squares in 4 ways, for example, as 68672695036201 + 62640418284900 = 8286899^2 + 7914570^2 .

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 131313113321101 - 25 = 131313113321069 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 (131313113321111) 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, 1314645681 + ... + 1314745561.

It is an arithmetic number, because the mean of its divisors is an integer number (16415690351175).

Almost surely, 2131313113321101 is an apocalyptic number.

It is an amenable number.

131313113321101 is a deficient number, since it is larger than the sum of its proper divisors (12409488299).

131313113321101 is an equidigital number, since it uses as much as digits as its factorization.

131313113321101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 210959.

The product of its (nonzero) digits is 486, while the sum is 25.

Adding to 131313113321101 its reverse (101123311313131), we get a palindrome (232436424634232).

The spelling of 131313113321101 in words is "one hundred thirty-one trillion, three hundred thirteen billion, one hundred thirteen million, three hundred twenty-one thousand, one hundred one".

Divisors: 1 13469 97609 99881 1314695621 1345297189 9749284529 131313113321101