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11300221231 = 13869247787
BaseRepresentation
bin10101000011000101…
…11011000100101111
31002011112100201100021
422201202323010233
5141120324034411
65105150543011
7550013203255
oct124142730457
932145321307
1011300221231
114879753512
122234507a67
1310b11a2050
14792b005d5
154620e3a71
hex2a18bb12f

11300221231 has 4 divisors (see below), whose sum is σ = 12169469032. Its totient is φ = 10430973432.

The previous prime is 11300221199. The next prime is 11300221267. The reversal of 11300221231 is 13212200311.

11300221231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13212200311 = 17483755717.

It is a cyclic number.

It is not a de Polignac number, because 11300221231 - 25 = 11300221199 is a prime.

It is a super-2 number, since 2×113002212312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11300221271) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 434623881 + ... + 434623906.

It is an arithmetic number, because the mean of its divisors is an integer number (3042367258).

Almost surely, 211300221231 is an apocalyptic number.

11300221231 is a deficient number, since it is larger than the sum of its proper divisors (869247801).

11300221231 is an equidigital number, since it uses as much as digits as its factorization.

11300221231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 869247800.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 11300221231 its reverse (13212200311), we get a palindrome (24512421542).

The spelling of 11300221231 in words is "eleven billion, three hundred million, two hundred twenty-one thousand, two hundred thirty-one".

Divisors: 1 13 869247787 11300221231