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11303121 = 33767707
BaseRepresentation
bin101011000111…
…100011010001
3210021020222010
4223013203101
510343144441
61042133133
7165034464
oct53074321
923236863
1011303121
116420225
1239511a9
132459a4b
1417032db
15ed4116
hexac78d1

11303121 has 4 divisors (see below), whose sum is σ = 15070832. Its totient is φ = 7535412.

The previous prime is 11303099. The next prime is 11303137. The reversal of 11303121 is 12130311.

11303121 is digitally balanced in base 2 and base 4, because in such bases 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: 12130311 = 34043437.

It is not a de Polignac number, because 11303121 - 26 = 11303057 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11303097 and 11303106.

It is not an unprimeable number, because it can be changed into a prime (11303021) 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, 1883851 + ... + 1883856.

It is an arithmetic number, because the mean of its divisors is an integer number (3767708).

Almost surely, 211303121 is an apocalyptic number.

It is an amenable number.

11303121 is a deficient number, since it is larger than the sum of its proper divisors (3767711).

11303121 is an equidigital number, since it uses as much as digits as its factorization.

11303121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3767710.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11303121 is about 3362.0114514975. The cubic root of 11303121 is about 224.4223602770.

Adding to 11303121 its reverse (12130311), we get a palindrome (23433432).

The spelling of 11303121 in words is "eleven million, three hundred three thousand, one hundred twenty-one".

Divisors: 1 3 3767707 11303121