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12130120231321 = 37499656996167
BaseRepresentation
bin1011000010000100001110…
…0000011110100110011001
31120221121221221020201210011
42300201003200132212121
53042214441234400241
641444300022121521
72361241454513341
oct260410340364631
946847857221704
1012130120231321
11395739a703564
12143aa948802a1
1369cb3346c6c1
142dd15b023d21
151607eb5d3281
hexb084381e999

12130120231321 has 8 divisors (see below), whose sum is σ = 12482927192000. Its totient is φ = 11778627264048.

The previous prime is 12130120231297. The next prime is 12130120231357. The reversal of 12130120231321 is 12313202103121.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12130120231321 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12130120231292 and 12130120231301.

It is not an unprimeable number, because it can be changed into a prime (12130120238321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 328479621 + ... + 328516546.

It is an arithmetic number, because the mean of its divisors is an integer number (1560365899000).

Almost surely, 212130120231321 is an apocalyptic number.

It is an amenable number.

12130120231321 is a deficient number, since it is larger than the sum of its proper divisors (352806960679).

12130120231321 is an equidigital number, since it uses as much as digits as its factorization.

12130120231321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 656996703.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 12130120231321 its reverse (12313202103121), we get a palindrome (24443322334442).

The spelling of 12130120231321 in words is "twelve trillion, one hundred thirty billion, one hundred twenty million, two hundred thirty-one thousand, three hundred twenty-one".

Divisors: 1 37 499 18463 656996167 24308858179 327841087333 12130120231321