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11000111101001 = 111000010100091
BaseRepresentation
bin1010000000010010100110…
…1101101111010001001001
31102221121012122201012020022
42200010221231233101021
52420211211420213001
635221214204510225
72213506002422051
oct240045155572111
942847178635208
1011000111101001
113561136a42820
121297a8ab4b375
1361a3c94535a9
142a05a0216561
1514121130311b
hexa0129b6f449

11000111101001 has 4 divisors (see below), whose sum is σ = 12000121201104. Its totient is φ = 10000101000900.

The previous prime is 11000111100931. The next prime is 11000111101027. The reversal of 11000111101001 is 10010111100011.

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.

It is a cyclic number.

It is not a de Polignac number, because 11000111101001 - 226 = 11000043992137 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11000111101001.

It is not an unprimeable number, because it can be changed into a prime (11000111101501) 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, 500005050035 + ... + 500005050056.

It is an arithmetic number, because the mean of its divisors is an integer number (3000030300276).

Almost surely, 211000111101001 is an apocalyptic number.

11000111101001 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11000111101001 is a deficient number, since it is larger than the sum of its proper divisors (1000010100103).

11000111101001 is a wasteful number, since it uses less digits than its factorization.

11000111101001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1000010100102.

The product of its (nonzero) digits is 1, while the sum is 8.

Adding to 11000111101001 its reverse (10010111100011), we get a palindrome (21010222201012).

The spelling of 11000111101001 in words is "eleven trillion, one hundred eleven million, one hundred one thousand, one".

Divisors: 1 11 1000010100091 11000111101001