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11131222110 = 235400192737
BaseRepresentation
bin10100101110111100…
…01111100001011110
31001201202100200010120
422113132033201132
5140244043101420
65040312415410
7542561553411
oct122736174136
931652320116
1011131222110
1147a2314a18
1221a79a7566
131085180478
147784abb78
1545235ed40
hex29778f85e

11131222110 has 32 divisors (see below), whose sum is σ = 26721898272. Its totient is φ = 2967552000.

The previous prime is 11131222097. The next prime is 11131222129. The reversal of 11131222110 is 1122213111.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 11131222110.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 73662 + ... + 166398.

It is an arithmetic number, because the mean of its divisors is an integer number (835059321).

Almost surely, 211131222110 is an apocalyptic number.

11131222110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11131222110 is an abundant number, since it is smaller than the sum of its proper divisors (15590676162).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11131222110 is a wasteful number, since it uses less digits than its factorization.

11131222110 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 96748.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11131222110 its reverse (1122213111), we get a palindrome (12253435221).

The spelling of 11131222110 in words is "eleven billion, one hundred thirty-one million, two hundred twenty-two thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 15 30 4001 8002 12003 20005 24006 40010 60015 92737 120030 185474 278211 463685 556422 927370 1391055 2782110 371040737 742081474 1113122211 1855203685 2226244422 3710407370 5565611055 11131222110