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2120314123 = 17312256151
BaseRepresentation
bin111111001100001…
…0110110100001011
312110202202010011201
41332120112310023
513320300022443
6550221405031
7103354241554
oct17630266413
95422663151
102120314123
11998953424
124b2109777
1327a381255
1416185732b
15c622b34d
hex7e616d0b

2120314123 has 4 divisors (see below), whose sum is σ = 2132570448. Its totient is φ = 2108057800.

The previous prime is 2120314121. The next prime is 2120314187. The reversal of 2120314123 is 3214130212.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 2120314123 - 21 = 2120314121 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2120314123.

It is not an unprimeable number, because it can be changed into a prime (2120314121) 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 in 3 ways as a sum of consecutive naturals, for example, 6127903 + ... + 6128248.

It is an arithmetic number, because the mean of its divisors is an integer number (533142612).

Almost surely, 22120314123 is an apocalyptic number.

2120314123 is a deficient number, since it is larger than the sum of its proper divisors (12256325).

2120314123 is a wasteful number, since it uses less digits than its factorization.

2120314123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12256324.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 2120314123 is about 46046.8687643362. The cubic root of 2120314123 is about 1284.6951030617.

Adding to 2120314123 its reverse (3214130212), we get a palindrome (5334444335).

The spelling of 2120314123 in words is "two billion, one hundred twenty million, three hundred fourteen thousand, one hundred twenty-three".

Divisors: 1 173 12256151 2120314123