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121120230 = 23571152433
BaseRepresentation
bin1110011100000…
…10010111100110
322102220112201110
413032002113212
5222001321410
620004005450
73000335130
oct716022746
9272815643
10121120230
1162407470
1234690886
131c129a9a
141212c050
15a977720
hex73825e6

121120230 has 64 divisors (see below), whose sum is σ = 362423808. Its totient is φ = 25167360.

The previous prime is 121120229. The next prime is 121120253. The reversal of 121120230 is 32021121.

It is a super-3 number, since 3×1211202303 (a number of 25 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Curzon number.

It is a nialpdrome in base 15.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23907 + ... + 28526.

It is an arithmetic number, because the mean of its divisors is an integer number (5662872).

Almost surely, 2121120230 is an apocalyptic number.

121120230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121120230 is an abundant number, since it is smaller than the sum of its proper divisors (241303578).

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

121120230 is a wasteful number, since it uses less digits than its factorization.

121120230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52461.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 121120230 is about 11005.4636431184. The cubic root of 121120230 is about 494.7725105069.

Adding to 121120230 its reverse (32021121), we get a palindrome (153141351).

The spelling of 121120230 in words is "one hundred twenty-one million, one hundred twenty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 11 14 15 21 22 30 33 35 42 55 66 70 77 105 110 154 165 210 231 330 385 462 770 1155 2310 52433 104866 157299 262165 314598 367031 524330 576763 734062 786495 1101093 1153526 1572990 1730289 1835155 2202186 2883815 3460578 3670310 4037341 5505465 5767630 8074682 8651445 11010930 12112023 17302890 20186705 24224046 40373410 60560115 121120230