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11300230121 = 54401207721
BaseRepresentation
bin10101000011000101…
…11101001111101001
31002011112101011112112
422201202331033221
5141120324330441
65105151052105
7550013241215
oct124142751751
932145334475
1011300230121
11487975a164
122234511035
1310b11a60cb
14792b03945
154620e64eb
hex2a18bd3e9

11300230121 has 4 divisors (see below), whose sum is σ = 11300492244. Its totient is φ = 11299968000.

The previous prime is 11300230099. The next prime is 11300230127. The reversal of 11300230121 is 12103200311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 12103200311 = 36233340657.

It can be written as a sum of positive squares in 2 ways, for example, as 7849960000 + 3450270121 = 88600^2 + 58739^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-11300230121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11300230096 and 11300230105.

It is not an unprimeable number, because it can be changed into a prime (11300230127) 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, 49460 + ... + 158261.

It is an arithmetic number, because the mean of its divisors is an integer number (2825123061).

Almost surely, 211300230121 is an apocalyptic number.

It is an amenable number.

11300230121 is a deficient number, since it is larger than the sum of its proper divisors (262123).

11300230121 is an equidigital number, since it uses as much as digits as its factorization.

11300230121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 262122.

The product of its (nonzero) digits is 36, while the sum is 14.

Adding to 11300230121 its reverse (12103200311), we get a palindrome (23403430432).

The spelling of 11300230121 in words is "eleven billion, three hundred million, two hundred thirty thousand, one hundred twenty-one".

Divisors: 1 54401 207721 11300230121