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130912123 is a prime number
BaseRepresentation
bin1111100110110…
…00111101111011
3100010100000200011
413303120331323
5232003141443
620553522351
73146506666
oct763307573
9303300604
10130912123
1167995241
1237a133b7
13211779c4
141355a6dd
15b75db9d
hex7cd8f7b

130912123 has 2 divisors, whose sum is σ = 130912124. Its totient is φ = 130912122.

The previous prime is 130912097. The next prime is 130912127. The reversal of 130912123 is 321219031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-130912123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130912094 and 130912103.

It is not a weakly prime, because it can be changed into another prime (130912127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65456061 + 65456062.

It is an arithmetic number, because the mean of its divisors is an integer number (65456062).

Almost surely, 2130912123 is an apocalyptic number.

130912123 is a deficient number, since it is larger than the sum of its proper divisors (1).

130912123 is an equidigital number, since it uses as much as digits as its factorization.

130912123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 130912123 is about 11441.6835736704. The cubic root of 130912123 is about 507.7617186484.

The spelling of 130912123 in words is "one hundred thirty million, nine hundred twelve thousand, one hundred twenty-three".