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130121227 is a prime number
BaseRepresentation
bin1111100000101…
…11111000001011
3100001211211202201
413300113320023
5231302334402
620524541031
73140004115
oct760277013
9301754681
10130121227
11674a5005
12376b1777
1320c5ba12
14133d23b5
15b654687
hex7c17e0b

130121227 has 2 divisors, whose sum is σ = 130121228. Its totient is φ = 130121226.

The previous prime is 130121207. The next prime is 130121287. The reversal of 130121227 is 722121031.

It is a weak prime.

It is an emirp because it is prime and its reverse (722121031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130121227 - 27 = 130121099 is a prime.

It is not a weakly prime, because it can be changed into another prime (130121207) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65060613 + 65060614.

It is an arithmetic number, because the mean of its divisors is an integer number (65060614).

Almost surely, 2130121227 is an apocalyptic number.

130121227 is a deficient number, since it is larger than the sum of its proper divisors (1).

130121227 is an equidigital number, since it uses as much as digits as its factorization.

130121227 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 130121227 is about 11407.0691678450. The cubic root of 130121227 is about 506.7371174446.

Adding to 130121227 its reverse (722121031), we get a palindrome (852242258).

The spelling of 130121227 in words is "one hundred thirty million, one hundred twenty-one thousand, two hundred twenty-seven".