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1220124107 is a prime number
BaseRepresentation
bin100100010111001…
…1001110111001011
310011000212201121202
41020232121313023
54444322432412
6321023254415
742143612066
oct11056316713
93130781552
101220124107
11576801334
122a074a40b
13165a1c237
14b808b8dd
15721b33c2
hex48b99dcb

1220124107 has 2 divisors, whose sum is σ = 1220124108. Its totient is φ = 1220124106.

The previous prime is 1220124053. The next prime is 1220124109. The reversal of 1220124107 is 7014210221.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1220124107 - 28 = 1220123851 is a prime.

Together with 1220124109, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (1220124109) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 610062053 + 610062054.

It is an arithmetic number, because the mean of its divisors is an integer number (610062054).

Almost surely, 21220124107 is an apocalyptic number.

1220124107 is a deficient number, since it is larger than the sum of its proper divisors (1).

1220124107 is an equidigital number, since it uses as much as digits as its factorization.

1220124107 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 224, while the sum is 20.

The square root of 1220124107 is about 34930.2749345035. The cubic root of 1220124107 is about 1068.5659617125.

Adding to 1220124107 its reverse (7014210221), we get a palindrome (8234334328).

The spelling of 1220124107 in words is "one billion, two hundred twenty million, one hundred twenty-four thousand, one hundred seven".