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12021002310223 = 194361976924691
BaseRepresentation
bin1010111011101101101110…
…0100101001001001001111
31120120012022022122000012001
42232323123210221021033
53033423003042411343
641322212222253131
72350326433501444
oct256733344511117
946505268560161
1012021002310223
113915095465385
1214219014271a7
1369276393309a
142d7b690539cb
1515ca61b7744d
hexaeedb92924f

12021002310223 has 32 divisors (see below), whose sum is σ = 13162100230400. Its totient is φ = 10939558291200.

The previous prime is 12021002310209. The next prime is 12021002310277. The reversal of 12021002310223 is 32201320012021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12021002310223 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12021002310223.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12021002310323) 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, 486845308 + ... + 486869998.

It is an arithmetic number, because the mean of its divisors is an integer number (411315632200).

Almost surely, 212021002310223 is an apocalyptic number.

12021002310223 is a deficient number, since it is larger than the sum of its proper divisors (1141097920177).

12021002310223 is a wasteful number, since it uses less digits than its factorization.

12021002310223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34583.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12021002310223 its reverse (32201320012021), we get a palindrome (44222322322244).

The spelling of 12021002310223 in words is "twelve trillion, twenty-one billion, two million, three hundred ten thousand, two hundred twenty-three".

Divisors: 1 19 43 61 817 1159 2623 9769 24691 49837 185611 420067 469129 595909 1061713 1506151 7981273 11322271 20172547 25624087 28616869 64764493 241206379 486857653 1230525367 4582921201 10371874297 14713589119 197065611643 279558193261 632684332117 12021002310223