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2101131301131 = 323751071235501
BaseRepresentation
bin11110100100110101001…
…011110101000100001011
321102212101110020020121200
4132210311023311010023
5233411104103114011
64245125115435243
7304541664244422
oct36446513650413
97385343206550
102101131301131
117400a29301a5
1229b268755b23
1312319c563a65
14739a3c7a2b9
15399c66d2856
hex1e9352f510b

2101131301131 has 24 divisors (see below), whose sum is σ = 3117606442704. Its totient is φ = 1362628008000.

The previous prime is 2101131301117. The next prime is 2101131301141. The reversal of 2101131301131 is 1311031311012.

2101131301131 is a `hidden beast` number, since 2 + 101 + 131 + 301 + 131 = 666.

It is not a de Polignac number, because 2101131301131 - 215 = 2101131268363 is a prime.

It is a super-2 number, since 2×21011313011312 (a number of 25 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2101131301111) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1082881 + ... + 2318381.

It is an arithmetic number, because the mean of its divisors is an integer number (129900268446).

Almost surely, 22101131301131 is an apocalyptic number.

2101131301131 is a deficient number, since it is larger than the sum of its proper divisors (1016475141573).

2101131301131 is a wasteful number, since it uses less digits than its factorization.

2101131301131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1240651 (or 1240648 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

Adding to 2101131301131 its reverse (1311031311012), we get a palindrome (3412162612143).

The spelling of 2101131301131 in words is "two trillion, one hundred one billion, one hundred thirty-one million, three hundred one thousand, one hundred thirty-one".

Divisors: 1 3 9 37 111 333 5107 15321 45963 188959 566877 1235501 1700631 3706503 11119509 45713537 137140611 411421833 6309703607 18929110821 56787332463 233459033459 700377100377 2101131301131