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123303130230 = 23573118940573
BaseRepresentation
bin111001011010101110…
…0000111010001110110
3102210021012121000100010
41302311130013101312
54010011100131410
6132351130001050
711623365212460
oct1626534072166
9383235530303
10123303130230
1148324447815
121ba91b76186
13b8206243b7
145d79cd9130
153319e75c20
hex1cb5707476

123303130230 has 64 divisors (see below), whose sum is σ = 349112659968. Its totient is φ = 27274423680.

The previous prime is 123303130187. The next prime is 123303130273. The reversal of 123303130230 is 32031303321.

It is an interprime number because it is at equal distance from previous prime (123303130187) and next prime (123303130273).

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a junction number, because it is equal to n+sod(n) for n = 123303130197 and 123303130206.

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, 9463777 + ... + 9476796.

It is an arithmetic number, because the mean of its divisors is an integer number (5454885312).

Almost surely, 2123303130230 is an apocalyptic number.

123303130230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123303130230 is an abundant number, since it is smaller than the sum of its proper divisors (225809529738).

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

123303130230 is a wasteful number, since it uses less digits than its factorization.

123303130230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18940621.

The product of its (nonzero) digits is 972, while the sum is 21.

Adding to 123303130230 its reverse (32031303321), we get a palindrome (155334433551).

The spelling of 123303130230 in words is "one hundred twenty-three billion, three hundred three million, one hundred thirty thousand, two hundred thirty".

Divisors: 1 2 3 5 6 7 10 14 15 21 30 31 35 42 62 70 93 105 155 186 210 217 310 434 465 651 930 1085 1302 2170 3255 6510 18940573 37881146 56821719 94702865 113643438 132584011 189405730 265168022 284108595 397752033 568217190 587157763 662920055 795504066 1174315526 1325840110 1761473289 1988760165 2935788815 3522946578 3977520330 4110104341 5871577630 8220208682 8807366445 12330313023 17614732890 20550521705 24660626046 41101043410 61651565115 123303130230