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120375121 is a prime number
BaseRepresentation
bin1110010110011…
…00011101010001
322101111200121211
413023030131101
5221304000441
615540020121
72661112606
oct713143521
9271450554
10120375121
1161a48679
1234391641
131bc288a9
1411db66ad
15a87ba81
hex72cc751

120375121 has 2 divisors, whose sum is σ = 120375122. Its totient is φ = 120375120.

The previous prime is 120375119. The next prime is 120375161. The reversal of 120375121 is 121573021.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 83905600 + 36469521 = 9160^2 + 6039^2 .

It is a cyclic number.

It is not a de Polignac number, because 120375121 - 21 = 120375119 is a prime.

Together with 120375119, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 120375092 and 120375101.

It is not a weakly prime, because it can be changed into another prime (120375161) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60187560 + 60187561.

It is an arithmetic number, because the mean of its divisors is an integer number (60187561).

Almost surely, 2120375121 is an apocalyptic number.

It is an amenable number.

120375121 is a deficient number, since it is larger than the sum of its proper divisors (1).

120375121 is an equidigital number, since it uses as much as digits as its factorization.

120375121 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 420, while the sum is 22.

The square root of 120375121 is about 10971.5596430043. The cubic root of 120375121 is about 493.7558402129.

The spelling of 120375121 in words is "one hundred twenty million, three hundred seventy-five thousand, one hundred twenty-one".