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10131119891 is a prime number
BaseRepresentation
bin10010110111101110…
…01001111100010011
3222011001111012210122
421123313021330103
5131222031314031
64353145020455
7506026045454
oct113367117423
928131435718
1010131119891
114329831362
121b68a8472b
13c55c088c9
146c173512b
153e465d47b
hex25bdc9f13

10131119891 has 2 divisors, whose sum is σ = 10131119892. Its totient is φ = 10131119890.

The previous prime is 10131119851. The next prime is 10131119959. The reversal of 10131119891 is 19891113101.

It is a weak prime.

It is an emirp because it is prime and its reverse (19891113101) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 10131119891 - 218 = 10130857747 is a prime.

It is not a weakly prime, because it can be changed into another prime (10131119821) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5065559945 + 5065559946.

It is an arithmetic number, because the mean of its divisors is an integer number (5065559946).

Almost surely, 210131119891 is an apocalyptic number.

10131119891 is a deficient number, since it is larger than the sum of its proper divisors (1).

10131119891 is an equidigital number, since it uses as much as digits as its factorization.

10131119891 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1944, while the sum is 35.

The spelling of 10131119891 in words is "ten billion, one hundred thirty-one million, one hundred nineteen thousand, eight hundred ninety-one".