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121012310302 = 21315823294149
BaseRepresentation
bin111000010110011100…
…1010101000100011110
3102120100120000022011121
41300230321111010132
53440313122412202
6131331533441154
711512540444252
oct1605471250436
9376316008147
10121012310302
1147359326904
121b5529401ba
13b546b44850
145bdd97a262
153233cb9537
hex1c2ce5511e

121012310302 has 16 divisors (see below), whose sum is σ = 195494443200. Its totient is φ = 55848115872.

The previous prime is 121012310273. The next prime is 121012310311. The reversal of 121012310302 is 203013210121.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 264324 + ... + 558472.

It is an arithmetic number, because the mean of its divisors is an integer number (12218402700).

Almost surely, 2121012310302 is an apocalyptic number.

121012310302 is a deficient number, since it is larger than the sum of its proper divisors (74482132898).

121012310302 is a wasteful number, since it uses less digits than its factorization.

121012310302 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 309987.

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

Adding to 121012310302 its reverse (203013210121), we get a palindrome (324025520423).

The spelling of 121012310302 in words is "one hundred twenty-one billion, twelve million, three hundred ten thousand, three hundred two".

Divisors: 1 2 13 26 15823 31646 205699 294149 411398 588298 3823937 7647874 4654319627 9308639254 60506155151 121012310302