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12012103131203 = 73870744333447
BaseRepresentation
bin1010111011001100100100…
…1000111110000001000011
31120112100100010020212120002
42232303021020332001003
53033301241400144303
641314141202110215
72346563053642220
oct256631110760103
946470303225502
1012012103131203
11391133907647a
12142003904b36b
13691976023196
142d75631a4947
1515c6e0763788
hexaecc923e043

12012103131203 has 8 divisors (see below), whose sum is σ = 13728472841472. Its totient is φ = 10295822165256.

The previous prime is 12012103131157. The next prime is 12012103131247. The reversal of 12012103131203 is 30213130121021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12012103131203 - 26 = 12012103131139 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12012103131253) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 21895775 + ... + 22437672.

It is an arithmetic number, because the mean of its divisors is an integer number (1716059105184).

Almost surely, 212012103131203 is an apocalyptic number.

12012103131203 is a deficient number, since it is larger than the sum of its proper divisors (1716369710269).

12012103131203 is an equidigital number, since it uses as much as digits as its factorization.

12012103131203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44372161.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 12012103131203 its reverse (30213130121021), we get a palindrome (42225233252224).

The spelling of 12012103131203 in words is "twelve trillion, twelve billion, one hundred three million, one hundred thirty-one thousand, two hundred three".

Divisors: 1 7 38707 270949 44333447 310334129 1716014733029 12012103131203