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12101220133023 = 3710126892121767
BaseRepresentation
bin1011000000011000100011…
…1011010110100010011111
31120211212100211121121220010
42300012020323112202133
53041231244323224043
641423120200454303
72356166341651110
oct260061073264237
946755324547803
1012101220133023
11394610a3179aa
12143536a17a393
1369a1a8c22618
142db9b8ad0207
1515eba9321133
hexb0188ed689f

12101220133023 has 32 divisors (see below), whose sum is σ = 18629462522880. Its totient is φ = 6843968409600.

The previous prime is 12101220133007. The next prime is 12101220133061. The reversal of 12101220133023 is 32033102210121.

It is not a de Polignac number, because 12101220133023 - 24 = 12101220133007 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12101220133003) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4642486 + ... + 6764252.

It is an arithmetic number, because the mean of its divisors is an integer number (582170703840).

Almost surely, 212101220133023 is an apocalyptic number.

12101220133023 is a deficient number, since it is larger than the sum of its proper divisors (6528242389857).

12101220133023 is a wasteful number, since it uses less digits than its factorization.

12101220133023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2124567.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12101220133023 its reverse (32033102210121), we get a palindrome (44134322343144).

The spelling of 12101220133023 in words is "twelve trillion, one hundred one billion, two hundred twenty million, one hundred thirty-three thousand, twenty-three".

Divisors: 1 3 7 21 101 303 707 2121 2689 8067 18823 56469 271589 814767 1901123 2121767 5703369 6365301 14852369 44557107 214298467 642895401 1500089269 4500267807 5705431463 17116294389 39938020241 119814060723 576248577763 1728745733289 4033740044341 12101220133023