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123041531320 = 2353781181353
BaseRepresentation
bin111001010010111011…
…0001100010110111000
3102202120222100102002121
41302211312030112320
54003442113000240
6132305143011024
711614040521441
oct1624566142670
9382528312077
10123041531320
11481aa811674
121ba1a439a74
13b7ab380446
145d532802c8
15330200004a
hex1ca5d8c5b8

123041531320 has 32 divisors (see below), whose sum is σ = 276854170320. Its totient is φ = 49214705920.

The previous prime is 123041531269. The next prime is 123041531399. The reversal of 123041531320 is 23135140321.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471764 + ... + 1553116.

Almost surely, 2123041531320 is an apocalyptic number.

123041531320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123041531320 is an abundant number, since it is smaller than the sum of its proper divisors (153812639000).

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

123041531320 is a wasteful number, since it uses less digits than its factorization.

123041531320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 119175 (or 119171 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 123041531320 its reverse (23135140321), we get a palindrome (146176671641).

The spelling of 123041531320 in words is "one hundred twenty-three billion, forty-one million, five hundred thirty-one thousand, three hundred twenty".

Divisors: 1 2 4 5 8 10 20 40 37811 75622 81353 151244 162706 189055 302488 325412 378110 406765 650824 756220 813530 1512440 1627060 3254120 3076038283 6152076566 12304153132 15380191415 24608306264 30760382830 61520765660 123041531320