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20111012000201 = 23095198707879
BaseRepresentation
bin1001001001010011101011…
…01110011111000111001001
32122012121001000010102022202
410210221311232133013021
510113444323033001301
6110434512114325545
74143654424323143
oct444516556370711
978177030112282
1020111012000201
116454039a87951
1223097952898b5
13b2b5ca35cc15
144d75419d3c93
1524d200c3066b
hex124a75b9f1c9

20111012000201 has 4 divisors (see below), whose sum is σ = 20111023017600. Its totient is φ = 20111000982804.

The previous prime is 20111012000081. The next prime is 20111012000203. The reversal of 20111012000201 is 10200021011102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-20111012000201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20111012000203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2044421 + ... + 6663458.

It is an arithmetic number, because the mean of its divisors is an integer number (5027755754400).

Almost surely, 220111012000201 is an apocalyptic number.

It is an amenable number.

20111012000201 is a deficient number, since it is larger than the sum of its proper divisors (11017399).

20111012000201 is an equidigital number, since it uses as much as digits as its factorization.

20111012000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11017398.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 20111012000201 its reverse (10200021011102), we get a palindrome (30311033011303).

The spelling of 20111012000201 in words is "twenty trillion, one hundred eleven billion, twelve million, two hundred one", and thus it is an aban number.

Divisors: 1 2309519 8707879 20111012000201