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12311200203 = 34765386117
BaseRepresentation
bin10110111011100111…
…00000000111001011
31011202222200202202220
423131303200013023
5200203131401303
65353343425123
7614040321651
oct133563400713
934688622686
1012311200203
115248395a25
122476bb51a3
131212784563
1484b0a8dd1
154c0c43053
hex2ddce01cb

12311200203 has 8 divisors (see below), whose sum is σ = 16415468688. Its totient is φ = 8207199264.

The previous prime is 12311200201. The next prime is 12311200207. The reversal of 12311200203 is 30200211321.

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

It is not a de Polignac number, because 12311200203 - 21 = 12311200201 is a prime.

It is a super-3 number, since 3×123112002033 (a number of 31 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (12311200201) 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, 99901 + ... + 186017.

It is an arithmetic number, because the mean of its divisors is an integer number (2051933586).

Almost surely, 212311200203 is an apocalyptic number.

12311200203 is a deficient number, since it is larger than the sum of its proper divisors (4104268485).

12311200203 is an equidigital number, since it uses as much as digits as its factorization.

12311200203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133773.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12311200203 its reverse (30200211321), we get a palindrome (42511411524).

The spelling of 12311200203 in words is "twelve billion, three hundred eleven million, two hundred thousand, two hundred three".

Divisors: 1 3 47653 86117 142959 258351 4103733401 12311200203