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11122321 = 71588903
BaseRepresentation
bin101010011011…
…011010010001
3202221001221211
4222123122101
510321403241
61034220121
7163352410
oct52333221
922831854
1011122321
116307401
123884641
1323c5672
141697477
15e9a781
hexa9b691

11122321 has 4 divisors (see below), whose sum is σ = 12711232. Its totient is φ = 9533412.

The previous prime is 11122297. The next prime is 11122333. The reversal of 11122321 is 12322111.

11122321 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 a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12322111 = 115310687.

It is not a de Polignac number, because 11122321 - 25 = 11122289 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11120321) 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, 794445 + ... + 794458.

It is an arithmetic number, because the mean of its divisors is an integer number (3177808).

Almost surely, 211122321 is an apocalyptic number.

It is an amenable number.

11122321 is a deficient number, since it is larger than the sum of its proper divisors (1588911).

11122321 is an equidigital number, since it uses as much as digits as its factorization.

11122321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1588910.

The product of its digits is 24, while the sum is 13.

The square root of 11122321 is about 3335.0143927725. The cubic root of 11122321 is about 223.2193341615.

Adding to 11122321 its reverse (12322111), we get a palindrome (23444432).

The spelling of 11122321 in words is "eleven million, one hundred twenty-two thousand, three hundred twenty-one".

Divisors: 1 7 1588903 11122321