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2011131101 = 7622146183
BaseRepresentation
bin111011111011111…
…0110110011011101
312012011022001020002
41313313312303131
513104322143401
6531321304045
7100560221660
oct16767666335
95164261202
102011131101
1194225a621
12481635025
13260873a05
141511556d7
15bb860a6b
hex77df6cdd

2011131101 has 8 divisors (see below), whose sum is σ = 2298854784. Its totient is φ = 1723512240.

The previous prime is 2011131079. The next prime is 2011131137. The reversal of 2011131101 is 1011311102.

It is a happy number.

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 2011131101 - 218 = 2010868957 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 (2011131301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 20456 + ... + 66638.

It is an arithmetic number, because the mean of its divisors is an integer number (287356848).

Almost surely, 22011131101 is an apocalyptic number.

It is an amenable number.

2011131101 is a deficient number, since it is larger than the sum of its proper divisors (287723683).

2011131101 is an equidigital number, since it uses as much as digits as its factorization.

2011131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52411.

The product of its (nonzero) digits is 6, while the sum is 11.

The square root of 2011131101 is about 44845.6363652028. The cubic root of 2011131101 is about 1262.2541117184.

Adding to 2011131101 its reverse (1011311102), we get a palindrome (3022442203).

The spelling of 2011131101 in words is "two billion, eleven million, one hundred thirty-one thousand, one hundred one".

Divisors: 1 7 6221 43547 46183 323281 287304443 2011131101