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12012310311101 = 192987092116531
BaseRepresentation
bin1010111011001101010101…
…1111010011000010111101
31120112100212120002200221122
42232303111133103002331
53033302202414423401
641314213522440325
72346601150642232
oct256632537230275
946470776080848
1012012310311101
113911435012831
1214200965030a5
136919a9c22539
142d75828d5789
1515c703a3a21b
hexaecd57d30bd

12012310311101 has 8 divisors (see below), whose sum is σ = 12644585474400. Its totient is φ = 11380039978320.

The previous prime is 12012310311083. The next prime is 12012310311137. The reversal of 12012310311101 is 10111301321021.

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

It is a cyclic number.

It is not a de Polignac number, because 12012310311101 - 26 = 12012310311037 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12012310311101.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12012310311301) 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, 4617206 + ... + 6733736.

It is an arithmetic number, because the mean of its divisors is an integer number (1580573184300).

Almost surely, 212012310311101 is an apocalyptic number.

It is an amenable number.

12012310311101 is a deficient number, since it is larger than the sum of its proper divisors (632275163299).

12012310311101 is a wasteful number, since it uses less digits than its factorization.

12012310311101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2415259.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 12012310311101 its reverse (10111301321021), we get a palindrome (22123611632122).

The spelling of 12012310311101 in words is "twelve trillion, twelve billion, three hundred ten million, three hundred eleven thousand, one hundred one".

Divisors: 1 19 298709 2116531 5675471 40214089 632226858479 12012310311101