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123210123130 = 2539107315059
BaseRepresentation
bin111001010111111100…
…1010100011101111010
3102210000201120202120201
41302233321110131322
54004313242420010
6132334004312414
711621155523653
oct1625771243572
9383021522521
10123210123130
11482869a2146
121ba669a270a
13b80728b803
145d6b80852a
153311c0323a
hex1cafe5477a

123210123130 has 16 divisors (see below), whose sum is σ = 221784596640. Its totient is φ = 49282632592.

The previous prime is 123210123119. The next prime is 123210123199. The reversal of 123210123130 is 31321012321.

It is a junction number, because it is equal to n+sod(n) for n = 123210123098 and 123210123107.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 233541 + ... + 548599.

It is an arithmetic number, because the mean of its divisors is an integer number (13861537290).

Almost surely, 2123210123130 is an apocalyptic number.

123210123130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123210123130 is a deficient number, since it is larger than the sum of its proper divisors (98574473510).

123210123130 is a wasteful number, since it uses less digits than its factorization.

123210123130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 354173.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 123210123130 its reverse (31321012321), we get a palindrome (154531135451).

The spelling of 123210123130 in words is "one hundred twenty-three billion, two hundred ten million, one hundred twenty-three thousand, one hundred thirty".

Divisors: 1 2 5 10 39107 78214 195535 315059 391070 630118 1575295 3150590 12321012313 24642024626 61605061565 123210123130