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12011110111110 = 23511172121148927
BaseRepresentation
bin1010111011001000110111…
…1100111001011110000110
31120112020202220201020002010
42232302031330321132012
53033242223142023420
641313454450155050
72346526335262005
oct256621574713606
946466686636063
1012011110111110
11391097958a810
12141ba00582a86
1369184838b026
142d74ab352c3c
1515c6834b04e0
hexaec8df39786

12011110111110 has 64 divisors (see below), whose sum is σ = 31465544269824. Its totient is φ = 2910092217600.

The previous prime is 12011110111073. The next prime is 12011110111201. The reversal of 12011110111110 is 1111101111021.

It is a super-2 number, since 2×120111101111102 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10006534 + ... + 11142393.

It is an arithmetic number, because the mean of its divisors is an integer number (491649129216).

Almost surely, 212011110111110 is an apocalyptic number.

12011110111110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12011110111110 is an abundant number, since it is smaller than the sum of its proper divisors (19454434158714).

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

12011110111110 is a wasteful number, since it uses less digits than its factorization.

12011110111110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21150669.

The product of its (nonzero) digits is 2, while the sum is 12.

Adding to 12011110111110 its reverse (1111101111021), we get a palindrome (13122211222131).

The spelling of 12011110111110 in words is "twelve trillion, eleven billion, one hundred ten million, one hundred eleven thousand, one hundred ten".

Divisors: 1 2 3 5 6 10 11 15 22 30 33 55 66 110 165 330 1721 3442 5163 8605 10326 17210 18931 25815 37862 51630 56793 94655 113586 189310 283965 567930 21148927 42297854 63446781 105744635 126893562 211489270 232638197 317233905 465276394 634467810 697914591 1163190985 1395829182 2326381970 3489572955 6979145910 36397303367 72794606734 109191910101 181986516835 218383820202 363973033670 400370337037 545959550505 800740674074 1091919101010 1201111011111 2001851685185 2402222022222 4003703370370 6005555055555 12011110111110