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11123000201 = 61718027553
BaseRepresentation
bin10100101101111101…
…11000001110001001
31001201011212221210102
422112332320032021
5140234442001301
65035420255145
7542431641005
oct122676701611
931634787712
1011123000201
114798709755
1221a50a14b5
131083562031
1477736b705
15451788b6b
hex296fb8389

11123000201 has 4 divisors (see below), whose sum is σ = 11141028372. Its totient is φ = 11104972032.

The previous prime is 11123000183. The next prime is 11123000279. The reversal of 11123000201 is 10200032111.

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

It can be written as a sum of positive squares in 2 ways, for example, as 1356817225 + 9766182976 = 36835^2 + 98824^2 .

It is a cyclic number.

It is not a de Polignac number, because 11123000201 - 222 = 11118805897 is a prime.

It is a super-2 number, since 2×111230002012 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11123000281) 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, 9013160 + ... + 9014393.

It is an arithmetic number, because the mean of its divisors is an integer number (2785257093).

Almost surely, 211123000201 is an apocalyptic number.

It is an amenable number.

11123000201 is a deficient number, since it is larger than the sum of its proper divisors (18028171).

11123000201 is an equidigital number, since it uses as much as digits as its factorization.

11123000201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18028170.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 11123000201 its reverse (10200032111), we get a palindrome (21323032312).

The spelling of 11123000201 in words is "eleven billion, one hundred twenty-three million, two hundred one", and thus it is an aban number.

Divisors: 1 617 18027553 11123000201