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131242151011291 is a prime number
BaseRepresentation
bin11101110101110100110001…
…110010100110001111011011
3122012200121221011021122000121
4131311310301302212033123
5114200232411124330131
61143043451205014111
736433634564121325
oct3565646162461733
9565617834248017
10131242151011291
11388aa535851a41
12128777369b4337
13583010a760a98
14245a22281c615
151028d99a0c911
hex775d31ca63db

131242151011291 has 2 divisors, whose sum is σ = 131242151011292. Its totient is φ = 131242151011290.

The previous prime is 131242151011277. The next prime is 131242151011369. The reversal of 131242151011291 is 192110151242131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131242151011291 - 29 = 131242151010779 is a prime.

It is a super-2 number, since 2×1312421510112912 (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (131242151014291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65621075505645 + 65621075505646.

It is an arithmetic number, because the mean of its divisors is an integer number (65621075505646).

Almost surely, 2131242151011291 is an apocalyptic number.

131242151011291 is a deficient number, since it is larger than the sum of its proper divisors (1).

131242151011291 is an equidigital number, since it uses as much as digits as its factorization.

131242151011291 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 4320, while the sum is 34.

The spelling of 131242151011291 in words is "one hundred thirty-one trillion, two hundred forty-two billion, one hundred fifty-one million, eleven thousand, two hundred ninety-one".