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121310310234 = 2317293153109229
BaseRepresentation
bin111000011111010101…
…0000110111101011010
3102121010022202021020010
41300332222012331122
53441420414411414
6131421300542350
711523116423601
oct1607652067532
9377108667203
10121310310234
11474a1564643
121b6166b19b6
13b5937c2179
145c2b38ca38
153250030959
hex1c3ea86f5a

121310310234 has 256 divisors, whose sum is σ = 283295232000. Its totient is φ = 34418442240.

The previous prime is 121310310193. The next prime is 121310310241. The reversal of 121310310234 is 432013013121.

It is a self number, because there is not a number n which added to its sum of digits gives 121310310234.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 529739232 + ... + 529739460.

It is an arithmetic number, because the mean of its divisors is an integer number (1106622000).

Almost surely, 2121310310234 is an apocalyptic number.

121310310234 is an abundant number, since it is smaller than the sum of its proper divisors (161984921766).

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

121310310234 is a wasteful number, since it uses less digits than its factorization.

121310310234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473.

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

Adding to 121310310234 its reverse (432013013121), we get a palindrome (553323323355).

The spelling of 121310310234 in words is "one hundred twenty-one billion, three hundred ten million, three hundred ten thousand, two hundred thirty-four".