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12424102111 = 21787570253
BaseRepresentation
bin10111001001000100…
…01100000011011111
31012001212010210002001
423210202030003133
5200421032231421
65412455343131
7616611061021
oct134442140337
935055123061
1012424102111
1152a6099893
1224a8981aa7
13122cc94715
1485c098011
154caae5691
hex2e488c0df

12424102111 has 4 divisors (see below), whose sum is σ = 12424694152. Its totient is φ = 12423510072.

The previous prime is 12424102099. The next prime is 12424102139. The reversal of 12424102111 is 11120142421.

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 12424102111 - 25 = 12424102079 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 (12424102511) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 263340 + ... + 306913.

It is an arithmetic number, because the mean of its divisors is an integer number (3106173538).

Almost surely, 212424102111 is an apocalyptic number.

12424102111 is a deficient number, since it is larger than the sum of its proper divisors (592041).

12424102111 is an equidigital number, since it uses as much as digits as its factorization.

12424102111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 592040.

The product of its (nonzero) digits is 128, while the sum is 19.

Adding to 12424102111 its reverse (11120142421), we get a palindrome (23544244532).

The spelling of 12424102111 in words is "twelve billion, four hundred twenty-four million, one hundred two thousand, one hundred eleven".

Divisors: 1 21787 570253 12424102111