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1010011111111 = 10110000110011
BaseRepresentation
bin11101011001010010101…
…10100111111011000111
310120120000102002120012001
432230221112213323013
5113022000321023421
62051554231210131
7132654005535622
oct16545126477307
93516012076161
101010011111111
1135a385a39942
121438b6816947
1374322376522
1436c55c5cdb9
151b4155bb691
hexeb295a7ec7

1010011111111 has 4 divisors (see below), whose sum is σ = 1020011221224. Its totient is φ = 1000011001000.

The previous prime is 1010011111103. The next prime is 1010011111141. The reversal of 1010011111111 is 1111111100101.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1010011111111 - 23 = 1010011111103 is a prime.

It is a Duffinian number.

1010011111111 is a modest number, since divided by 1111111 gives 101001 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1010011111141) 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, 5000054905 + ... + 5000055106.

It is an arithmetic number, because the mean of its divisors is an integer number (255002805306).

Almost surely, 21010011111111 is an apocalyptic number.

1010011111111 is a deficient number, since it is larger than the sum of its proper divisors (10000110113).

1010011111111 is a wasteful number, since it uses less digits than its factorization.

1010011111111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10000110112.

The product of its (nonzero) digits is 1, while the sum is 10.

Adding to 1010011111111 its reverse (1111111100101), we get a palindrome (2121122211212).

The spelling of 1010011111111 in words is "one trillion, ten billion, eleven million, one hundred eleven thousand, one hundred eleven".

Divisors: 1 101 10000110011 1010011111111