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123130320230 = 25192332781349
BaseRepresentation
bin111001010101100100…
…0111001010101100110
3102202211011102100120202
41302223020321111212
54004132330221410
6132322034030502
711616166311311
oct1625310712546
9382734370522
10123130320230
1148245946035
121ba44118432
13b7c389a068
145d60d93978
153309bdcca5
hex1cab239566

123130320230 has 32 divisors (see below), whose sum is σ = 234300924000. Its totient is φ = 46459636992.

The previous prime is 123130320227. The next prime is 123130320251. The reversal of 123130320230 is 32023031321.

123130320230 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×1231303202302 (a number of 23 digits) contains 22 as substring.

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 15 ways as a sum of consecutive naturals, for example, 1346405 + ... + 1434944.

It is an arithmetic number, because the mean of its divisors is an integer number (7321903875).

Almost surely, 2123130320230 is an apocalyptic number.

123130320230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123130320230 is a deficient number, since it is larger than the sum of its proper divisors (111170603770).

123130320230 is a wasteful number, since it uses less digits than its factorization.

123130320230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2781608.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 123130320230 its reverse (32023031321), we get a palindrome (155153351551).

The spelling of 123130320230 in words is "one hundred twenty-three billion, one hundred thirty million, three hundred twenty thousand, two hundred thirty".

Divisors: 1 2 5 10 19 38 95 190 233 466 1165 2330 4427 8854 22135 44270 2781349 5562698 13906745 27813490 52845631 105691262 264228155 528456310 648054317 1296108634 3240271585 6480543170 12313032023 24626064046 61565160115 123130320230