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12112103100 = 2235246218737
BaseRepresentation
bin10110100011111000…
…00000011010111100
31011021010001120220010
423101330000122330
5144301144244400
65321512223220
7606102114636
oct132174003274
934233046803
1012112103100
115155a6a369
12242039ab10
1311b0455216
1482c87da56
154ad516450
hex2d1f006bc

12112103100 has 72 divisors (see below), whose sum is σ = 35055947248. Its totient is φ = 3228825600.

The previous prime is 12112103057. The next prime is 12112103149. The reversal of 12112103100 is 130121121.

It is a super-2 number, since 2×121121031002 (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1381932 + ... + 1390668.

Almost surely, 212112103100 is an apocalyptic number.

12112103100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12112103100 is an abundant number, since it is smaller than the sum of its proper divisors (22943844148).

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

12112103100 is a wasteful number, since it uses less digits than its factorization.

12112103100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13375 (or 13368 counting only the distinct ones).

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

Adding to 12112103100 its reverse (130121121), we get a palindrome (12242224221).

The spelling of 12112103100 in words is "twelve billion, one hundred twelve million, one hundred three thousand, one hundred".

Divisors: 1 2 3 4 5 6 10 12 15 20 25 30 50 60 75 100 150 300 4621 8737 9242 13863 17474 18484 23105 26211 27726 34948 43685 46210 52422 55452 69315 87370 92420 104844 115525 131055 138630 174740 218425 231050 262110 277260 346575 436850 462100 524220 655275 693150 873700 1310550 1386300 2621100 40373677 80747354 121121031 161494708 201868385 242242062 403736770 484484124 605605155 807473540 1009341925 1211210310 2018683850 2422420620 3028025775 4037367700 6056051550 12112103100