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102120212303 = 193529120271
BaseRepresentation
bin101111100011011010…
…1101100011101001111
3100202120221012021202022
41133012311230131033
53133120233243203
6114525142320355
710243430324324
oct1370665543517
9322527167668
10102120212303
113a344219a7a
121795ba290bb
139825b56535
144d2a88cb4b
1529ca445a38
hex17c6d6c74f

102120212303 has 4 divisors (see below), whose sum is σ = 102649332768. Its totient is φ = 101591091840.

The previous prime is 102120212263. The next prime is 102120212333. The reversal of 102120212303 is 303212021201.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 303212021201 = 1618918729509.

It is a cyclic number.

It is not a de Polignac number, because 102120212303 - 26 = 102120212239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102120212333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 264559943 + ... + 264560328.

It is an arithmetic number, because the mean of its divisors is an integer number (25662333192).

Almost surely, 2102120212303 is an apocalyptic number.

102120212303 is a deficient number, since it is larger than the sum of its proper divisors (529120465).

102120212303 is an equidigital number, since it uses as much as digits as its factorization.

102120212303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 529120464.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 102120212303 its reverse (303212021201), we get a palindrome (405332233504).

The spelling of 102120212303 in words is "one hundred two billion, one hundred twenty million, two hundred twelve thousand, three hundred three".

Divisors: 1 193 529120271 102120212303