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11300231231 = 45724726983
BaseRepresentation
bin10101000011000101…
…11101100000111111
31002011112101020001122
422201202331200333
5141120324344411
65105151101155
7550013244362
oct124142754077
932145336048
1011300231231
11487975aa83
1222345117bb
1310b11a6773
14792b040d9
154620e69db
hex2a18bd83f

11300231231 has 4 divisors (see below), whose sum is σ = 11324958672. Its totient is φ = 11275503792.

The previous prime is 11300231227. The next prime is 11300231233. The reversal of 11300231231 is 13213200311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13213200311 = 75891741099.

It is a cyclic number.

It is not a de Polignac number, because 11300231231 - 22 = 11300231227 is a prime.

It is a super-2 number, since 2×113002312312 (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 (11300231233) 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, 12363035 + ... + 12363948.

It is an arithmetic number, because the mean of its divisors is an integer number (2831239668).

Almost surely, 211300231231 is an apocalyptic number.

11300231231 is a deficient number, since it is larger than the sum of its proper divisors (24727441).

11300231231 is an equidigital number, since it uses as much as digits as its factorization.

11300231231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24727440.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 11300231231 its reverse (13213200311), we get a palindrome (24513431542).

The spelling of 11300231231 in words is "eleven billion, three hundred million, two hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 457 24726983 11300231231