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12020013132625 = 53186151671201
BaseRepresentation
bin1010111011101010000010…
…0111001110101101010001
31120120002202101022120121201
42232322200213032231101
53033413441330221000
641321530124551201
72350263062563651
oct256724047165521
946502671276551
1012020013132625
113914728063633
1214216860b2501
13692636a14bb4
142d7ab3922361
1515ca04dd296a
hexaeea09ceb51

12020013132625 has 16 divisors (see below), whose sum is σ = 15009037387344. Its totient is φ = 9610843200000.

The previous prime is 12020013132613. The next prime is 12020013132671. The reversal of 12020013132625 is 52623131002021.

It can be written as a sum of positive squares in 8 ways, for example, as 8167209455889 + 3852803676736 = 2857833^2 + 1962856^2 .

It is not a de Polignac number, because 12020013132625 - 237 = 11882574179153 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12020013132593 and 12020013132602.

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 15 ways as a sum of consecutive naturals, for example, 25602976 + ... + 26068225.

It is an arithmetic number, because the mean of its divisors is an integer number (938064836709).

Almost surely, 212020013132625 is an apocalyptic number.

It is an amenable number.

12020013132625 is a deficient number, since it is larger than the sum of its proper divisors (2989024254719).

12020013132625 is an equidigital number, since it uses as much as digits as its factorization.

12020013132625 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51673077 (or 51673067 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 28.

Adding to 12020013132625 its reverse (52623131002021), we get a palindrome (64643144134646).

The spelling of 12020013132625 in words is "twelve trillion, twenty billion, thirteen million, one hundred thirty-two thousand, six hundred twenty-five".

Divisors: 1 5 25 125 1861 9305 46525 232625 51671201 258356005 1291780025 6458900125 96160105061 480800525305 2404002626525 12020013132625