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123130330000 = 245461712843
BaseRepresentation
bin111001010101100100…
…0111011101110010000
3102202211011102211222121
41302223020323232100
54004132331030000
6132322034144024
711616166351636
oct1625310735620
9382734384877
10123130330000
1148245952407
121ba44122014
13b7c38a1642
145d60d97356
153309be0b1a
hex1cab23bb90

123130330000 has 200 divisors, whose sum is σ = 307373558976. Its totient is φ = 47745600000.

The previous prime is 123130329989. The next prime is 123130330003. The reversal of 123130330000 is 33031321.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×1231303300002 (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (123130330003) by changing a digit.

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 39 ways as a sum of consecutive naturals, for example, 43308579 + ... + 43311421.

Almost surely, 2123130330000 is an apocalyptic number.

123130330000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123130330000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153686779488).

123130330000 is an abundant number, since it is smaller than the sum of its proper divisors (184243228976).

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

123130330000 is an equidigital number, since it uses as much as digits as its factorization.

123130330000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3003 (or 2982 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

Adding to 123130330000 its reverse (33031321), we get a palindrome (123163361321).

The spelling of 123130330000 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred thirty thousand".