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123030130230 = 23357233491569
BaseRepresentation
bin111001010010100101…
…0101100111000110110
3102202120011220011202000
41302211022230320312
54003431203131410
6132304054400130
711613541565220
oct1624512547066
9382504804660
10123030130230
11481a4334887
121ba16660046
13b7a8bbac37
145d51953410
153300eebdc0
hex1ca52ace36

123030130230 has 256 divisors, whose sum is σ = 377988249600. Its totient is φ = 27894343680.

The previous prime is 123030130127. The next prime is 123030130243. The reversal of 123030130230 is 32031030321.

123030130230 is a `hidden beast` number, since 1 + 2 + 30 + 301 + 302 + 30 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

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 127 ways as a sum of consecutive naturals, for example, 216221386 + ... + 216221954.

It is an arithmetic number, because the mean of its divisors is an integer number (1476516600).

Almost surely, 2123030130230 is an apocalyptic number.

123030130230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 123030130230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (188994124800).

123030130230 is an abundant number, since it is smaller than the sum of its proper divisors (254958119370).

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

123030130230 is a wasteful number, since it uses less digits than its factorization.

123030130230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1316 (or 1310 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

Adding to 123030130230 its reverse (32031030321), we get a palindrome (155061160551).

Subtracting from 123030130230 its reverse (32031030321), we obtain a palindrome (90999099909).

The spelling of 123030130230 in words is "one hundred twenty-three billion, thirty million, one hundred thirty thousand, two hundred thirty".