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12103201023100 = 22521185811282241
BaseRepresentation
bin1011000000011111111011…
…1111110110010001111100
31120212001110220000021020021
42300013332333312101330
53041244323430214400
641424044522101524
72356266414151615
oct260077677662174
946761426007207
1012103201023100
113946a364a1a40
12143582164a8a4
1369a433438725
142dbb25c12c0c
1515ec731ab71a
hexb01feff647c

12103201023100 has 72 divisors (see below), whose sum is σ = 28654938997776. Its totient is φ = 4400647680000.

The previous prime is 12103201023091. The next prime is 12103201023113. The reversal of 12103201023100 is 132010230121.

It is a super-2 number, since 2×121032010231002 (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 23 ways as a sum of consecutive naturals, for example, 8797980 + ... + 10080220.

It is an arithmetic number, because the mean of its divisors is an integer number (397985263858).

Almost surely, 212103201023100 is an apocalyptic number.

12103201023100 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12103201023100 is an abundant number, since it is smaller than the sum of its proper divisors (16551737974676).

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

12103201023100 is a wasteful number, since it uses less digits than its factorization.

12103201023100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1290847 (or 1290840 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12103201023100 its reverse (132010230121), we get a palindrome (12235211253221).

The spelling of 12103201023100 in words is "twelve trillion, one hundred three billion, two hundred one million, twenty-three thousand, one hundred".

Divisors: 1 2 4 5 10 11 20 22 25 44 50 55 100 110 220 275 550 1100 8581 17162 34324 42905 85810 94391 171620 188782 214525 377564 429050 471955 858100 943910 1282241 1887820 2359775 2564482 4719550 5128964 6411205 9439100 12822410 14104651 25644820 28209302 32056025 56418604 64112050 70523255 128224100 141046510 282093020 352616275 705232550 1410465100 11002910021 22005820042 44011640084 55014550105 110029100210 121032010231 220058200420 242064020462 275072750525 484128040924 550145501050 605160051155 1100291002100 1210320102310 2420640204620 3025800255775 6051600511550 12103201023100