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123210130130 = 2512321013013
BaseRepresentation
bin111001010111111100…
…1010110001011010010
3102210000201121010011222
41302233321112023102
54004313243131010
6132334004405042
711621155553243
oct1625771261322
9383021533158
10123210130130
11482869a742a
121ba669a6782
13b807291a59
145d6b80acca
153311c05355
hex1cafe562d2

123210130130 has 8 divisors (see below), whose sum is σ = 221778234252. Its totient is φ = 49284052048.

The previous prime is 123210130111. The next prime is 123210130159. The reversal of 123210130130 is 31031012321.

It can be written as a sum of positive squares in 2 ways, for example, as 122914049281 + 296080849 = 350591^2 + 17207^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 123210130099 and 123210130108.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6160506497 + ... + 6160506516.

Almost surely, 2123210130130 is an apocalyptic number.

123210130130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

123210130130 is a deficient number, since it is larger than the sum of its proper divisors (98568104122).

123210130130 is a wasteful number, since it uses less digits than its factorization.

123210130130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12321013020.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 123210130130 its reverse (31031012321), we get a palindrome (154241142451).

The spelling of 123210130130 in words is "one hundred twenty-three billion, two hundred ten million, one hundred thirty thousand, one hundred thirty".

Divisors: 1 2 5 10 12321013013 24642026026 61605065065 123210130130