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121313133030 = 2354721830589
BaseRepresentation
bin111000011111011010…
…0111000000111100110
3102121010112001200101010
41300332310320013212
53441422130224110
6131421441243050
711523152421405
oct1607664700746
9377115050333
10121313133030
11474a3112431
121b617633486
13b59426cc6b
145c2b8c563c
1532503dc020
hex1c3ed381e6

121313133030 has 48 divisors (see below), whose sum is σ = 297478197360. Its totient is φ = 31661850048.

The previous prime is 121313133017. The next prime is 121313133031. The reversal of 121313133030 is 30331313121.

It is a junction number, because it is equal to n+sod(n) for n = 121313132988 and 121313133006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121313133031) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 849025 + ... + 981564.

It is an arithmetic number, because the mean of its divisors is an integer number (6197462445).

Almost surely, 2121313133030 is an apocalyptic number.

121313133030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121313133030 is an abundant number, since it is smaller than the sum of its proper divisors (176165064330).

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

121313133030 is a wasteful number, since it uses less digits than its factorization.

121313133030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1830693 (or 1830646 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 121313133030 its reverse (30331313121), we get a palindrome (151644446151).

The spelling of 121313133030 in words is "one hundred twenty-one billion, three hundred thirteen million, one hundred thirty-three thousand, thirty".

Divisors: 1 2 3 5 6 10 15 30 47 94 141 235 282 470 705 1410 2209 4418 6627 11045 13254 22090 33135 66270 1830589 3661178 5491767 9152945 10983534 18305890 27458835 54917670 86037683 172075366 258113049 430188415 516226098 860376830 1290565245 2581130490 4043771101 8087542202 12131313303 20218855505 24262626606 40437711010 60656566515 121313133030