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121927301269 is a prime number
BaseRepresentation
bin111000110001101101…
…1101111100010010101
3102122201022201122210221
41301203123233202111
53444201342120034
6132002421114341
711544320650354
oct1614333574225
9378638648727
10121927301269
1147788868094
121b7692589b1
13b661589717
145c892b999b
1532892a7bb4
hex1c636ef895

121927301269 has 2 divisors, whose sum is σ = 121927301270. Its totient is φ = 121927301268.

The previous prime is 121927301263. The next prime is 121927301339. The reversal of 121927301269 is 962103729121.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 101802474225 + 20124827044 = 319065^2 + 141862^2 .

It is a cyclic number.

It is not a de Polignac number, because 121927301269 - 29 = 121927300757 is a prime.

It is a super-2 number, since 2×1219273012692 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (121927301263) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60963650634 + 60963650635.

It is an arithmetic number, because the mean of its divisors is an integer number (60963650635).

Almost surely, 2121927301269 is an apocalyptic number.

It is an amenable number.

121927301269 is a deficient number, since it is larger than the sum of its proper divisors (1).

121927301269 is an equidigital number, since it uses as much as digits as its factorization.

121927301269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 81648, while the sum is 43.

The spelling of 121927301269 in words is "one hundred twenty-one billion, nine hundred twenty-seven million, three hundred one thousand, two hundred sixty-nine".