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12303143111 = 77364137561
BaseRepresentation
bin10110111010101001…
…10001000011000111
31011202102112102112002
423131110301003013
5200144101034421
65352455015515
7613611663620
oct133524610307
934672472462
1012303143111
115243892576
12247436a59b
131210bc314c
14849daca47
154c01a0b0b
hex2dd5310c7

12303143111 has 16 divisors (see below), whose sum is σ = 14275963968. Its totient is φ = 10384588800.

The previous prime is 12303143071. The next prime is 12303143123. The reversal of 12303143111 is 11134130321.

12303143111 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12303143111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12303145111) 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 15 ways as a sum of consecutive naturals, for example, 308771 + ... + 346331.

It is an arithmetic number, because the mean of its divisors is an integer number (892247748).

Almost surely, 212303143111 is an apocalyptic number.

12303143111 is a deficient number, since it is larger than the sum of its proper divisors (1972820857).

12303143111 is an equidigital number, since it uses as much as digits as its factorization.

12303143111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 38282.

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

Adding to 12303143111 its reverse (11134130321), we get a palindrome (23437273432).

The spelling of 12303143111 in words is "twelve billion, three hundred three million, one hundred forty-three thousand, one hundred eleven".

Divisors: 1 7 73 511 641 4487 37561 46793 262927 327551 2741953 19193671 24076601 168536207 1757591873 12303143111