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130123211 is a prime number
BaseRepresentation
bin1111100000110…
…00010111001011
3100001211221111012
413300120113023
5231302420321
620524554135
73140012651
oct760302713
9301757435
10130123211
11674a6549
12376b294b
1320c5c8aa
14133d2dd1
15b65505b
hex7c185cb

130123211 has 2 divisors, whose sum is σ = 130123212. Its totient is φ = 130123210.

The previous prime is 130123199. The next prime is 130123241. The reversal of 130123211 is 112321031.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 130123211 - 214 = 130106827 is a prime.

It is not a weakly prime, because it can be changed into another prime (130123241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061605 + 65061606.

It is an arithmetic number, because the mean of its divisors is an integer number (65061606).

Almost surely, 2130123211 is an apocalyptic number.

130123211 is a deficient number, since it is larger than the sum of its proper divisors (1).

130123211 is an equidigital number, since it uses as much as digits as its factorization.

130123211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 130123211 is about 11407.1561311310. The cubic root of 130123211 is about 506.7396928925.

Adding to 130123211 its reverse (112321031), we get a palindrome (242444242).

The spelling of 130123211 in words is "one hundred thirty million, one hundred twenty-three thousand, two hundred eleven".