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121023210230 = 2513279906473
BaseRepresentation
bin111000010110110001…
…0111010001011110110
3102120101022112002001122
41300231202322023312
53440323420211410
6131333003223542
711513032212416
oct1605542721366
9376338462048
10121023210230
11473644a110a
121b556517bb2
13b54918cc00
145c011b6646
153234c1de55
hex1c2d8ba2f6

121023210230 has 48 divisors (see below), whose sum is σ = 238874028480. Its totient is φ = 44119805184.

The previous prime is 121023210199. The next prime is 121023210251. The reversal of 121023210230 is 32012320121.

121023210230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 121023210199 and 121023210208.

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, 319727 + ... + 586746.

It is an arithmetic number, because the mean of its divisors is an integer number (4976542260).

Almost surely, 2121023210230 is an apocalyptic number.

121023210230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121023210230 is a deficient number, since it is larger than the sum of its proper divisors (117850818250).

121023210230 is a wasteful number, since it uses less digits than its factorization.

121023210230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 906585 (or 906572 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 121023210230 its reverse (32012320121), we get a palindrome (153035530351).

The spelling of 121023210230 in words is "one hundred twenty-one billion, twenty-three million, two hundred ten thousand, two hundred thirty".

Divisors: 1 2 5 10 13 26 65 79 130 158 169 338 395 790 845 1027 1690 2054 5135 10270 13351 26702 66755 133510 906473 1812946 4532365 9064730 11784149 23568298 58920745 71611367 117841490 143222734 153193937 306387874 358056835 716113670 765969685 930947771 1531939370 1861895542 4654738855 9309477710 12102321023 24204642046 60511605115 121023210230