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131002665467629 is a prime number
BaseRepresentation
bin11101110010010101101111…
…010101101111111011101101
3122011211201202222222111110011
4131302111233111233323231
5114132321424324431004
61142341443234413221
736410426113440244
oct3562255725577355
9564751688874404
10131002665467629
1138817a1147342a
121283923b731211
135813662b364b7
14244c7c460995b
151022a2ed23004
hex77256f56feed

131002665467629 has 2 divisors, whose sum is σ = 131002665467630. Its totient is φ = 131002665467628.

The previous prime is 131002665467627. The next prime is 131002665467677. The reversal of 131002665467629 is 926764566200131.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95428574250025 + 35574091217604 = 9768755^2 + 5964402^2 .

It is a cyclic number.

It is not a de Polignac number, because 131002665467629 - 21 = 131002665467627 is a prime.

Together with 131002665467627, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131002665467627) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65501332733814 + 65501332733815.

It is an arithmetic number, because the mean of its divisors is an integer number (65501332733815).

Almost surely, 2131002665467629 is an apocalyptic number.

It is an amenable number.

131002665467629 is a deficient number, since it is larger than the sum of its proper divisors (1).

131002665467629 is an equidigital number, since it uses as much as digits as its factorization.

131002665467629 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 19595520, while the sum is 58.

The spelling of 131002665467629 in words is "one hundred thirty-one trillion, two billion, six hundred sixty-five million, four hundred sixty-seven thousand, six hundred twenty-nine".