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121230102313100 = 225211159457691153
BaseRepresentation
bin11011100100001000010101…
…001011110011100010001100
3120220020111002021022002111002
4123210020111023303202030
5111342213222143004400
61105500201250315432
734351404643264034
oct3344102513634214
9526214067262432
10121230102313100
113569a441325710
121171b257b88b78
135284c46350061
1421d17d54368c4
15e03716e29ed5
hex6e42152f388c

121230102313100 has 72 divisors (see below), whose sum is σ = 286986929921328. Its totient is φ = 44083333324800.

The previous prime is 121230102313097. The next prime is 121230102313207. The reversal of 121230102313100 is 1313201032121.

It is a happy number.

It is a super-2 number, since 2×1212301023131002 (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

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, 175057124 + ... + 175748276.

Almost surely, 2121230102313100 is an apocalyptic number.

121230102313100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121230102313100 is an abundant number, since it is smaller than the sum of its proper divisors (165756827608228).

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

121230102313100 is a wasteful number, since it uses less digits than its factorization.

121230102313100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 850635 (or 850628 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 121230102313100 its reverse (1313201032121), we get a palindrome (122543303345221).

The spelling of 121230102313100 in words is "one hundred twenty-one trillion, two hundred thirty billion, one hundred two million, three hundred thirteen thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 159457 318914 637828 691153 797285 1382306 1594570 1754027 2764612 3189140 3455765 3508054 3986425 6911530 7016108 7602683 7972850 8770135 13823060 15205366 15945700 17278825 17540270 30410732 34557650 35080540 38013415 43850675 69115300 76026830 87701350 152053660 175402700 190067075 380134150 760268300 110209183921 220418367842 440836735684 551045919605 1102091839210 1212301023131 2204183678420 2424602046262 2755229598025 4849204092524 5510459196050 6061505115655 11020918392100 12123010231310 24246020462620 30307525578275 60615051156550 121230102313100