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123200230230 = 233571146312799
BaseRepresentation
bin111001010111101001…
…1100101001101010110
3102210000000222011002000
41302233103211031112
54004303224331410
6132333012300130
711621005451460
oct1625723451526
9383000864060
10123200230230
11482813554a0
121ba63611646
13b80520691c
145d6a391130
153310debdc0
hex1caf4e5356

123200230230 has 256 divisors, whose sum is σ = 410517504000. Its totient is φ = 25542760320.

The previous prime is 123200230211. The next prime is 123200230259. The reversal of 123200230230 is 32032002321.

It is a happy number.

123200230230 is a `hidden beast` number, since 1 + 2 + 3 + 200 + 230 + 230 = 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 polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 9619371 + ... + 9632169.

It is an arithmetic number, because the mean of its divisors is an integer number (1603584000).

Almost surely, 2123200230230 is an apocalyptic number.

123200230230 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 123200230230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (205258752000).

123200230230 is an abundant number, since it is smaller than the sum of its proper divisors (287317273770).

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

123200230230 is a wasteful number, since it uses less digits than its factorization.

123200230230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13296 (or 13290 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 123200230230 its reverse (32032002321), we get a palindrome (155232232551).

The spelling of 123200230230 in words is "one hundred twenty-three billion, two hundred million, two hundred thirty thousand, two hundred thirty".