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11001320101 = 25742806693
BaseRepresentation
bin10100011111011101…
…01101001010100101
31001101200220222002001
422033232231022211
5140012314220401
65015352245301
7536423451352
oct121756551245
931350828061
1011001320101
114735a5a692
1221703a0831
13106429a485
14765135629
15445c50601
hex28fbad2a5

11001320101 has 4 divisors (see below), whose sum is σ = 11044127052. Its totient is φ = 10958513152.

The previous prime is 11001320063. The next prime is 11001320107. The reversal of 11001320101 is 10102310011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10102310011 = 26773773743.

It can be written as a sum of positive squares in 2 ways, for example, as 10483712100 + 517608001 = 102390^2 + 22751^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11001320101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11001320107) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21403090 + ... + 21403603.

It is an arithmetic number, because the mean of its divisors is an integer number (2761031763).

Almost surely, 211001320101 is an apocalyptic number.

It is an amenable number.

11001320101 is a deficient number, since it is larger than the sum of its proper divisors (42806951).

11001320101 is an equidigital number, since it uses as much as digits as its factorization.

11001320101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42806950.

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 11001320101 its reverse (10102310011), we get a palindrome (21103630112).

The spelling of 11001320101 in words is "eleven billion, one million, three hundred twenty thousand, one hundred one".

Divisors: 1 257 42806693 11001320101