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12142431111 = 328314302039
BaseRepresentation
bin10110100111011111…
…01100101110000111
31011100020010102002210
423103233230232013
5144331430243421
65324514234503
7606620650536
oct132357545607
934306112083
1012142431111
1151710a4238
12242a585a33
1311b68135a5
148328d631d
154b1007576
hex2d3becb87

12142431111 has 8 divisors (see below), whose sum is σ = 16247117440. Its totient is φ = 8066349432.

The previous prime is 12142431053. The next prime is 12142431113. The reversal of 12142431111 is 11113424121.

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

It is not a de Polignac number, because 12142431111 - 210 = 12142430087 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 (12142431113) 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, 7150171 + ... + 7151868.

It is an arithmetic number, because the mean of its divisors is an integer number (2030889680).

Almost surely, 212142431111 is an apocalyptic number.

12142431111 is a deficient number, since it is larger than the sum of its proper divisors (4104686329).

12142431111 is a wasteful number, since it uses less digits than its factorization.

12142431111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14302325.

The product of its digits is 192, while the sum is 21.

Adding to 12142431111 its reverse (11113424121), we get a palindrome (23255855232).

The spelling of 12142431111 in words is "twelve billion, one hundred forty-two million, four hundred thirty-one thousand, one hundred eleven".

Divisors: 1 3 283 849 14302039 42906117 4047477037 12142431111