11305123 has 2 divisors, whose sum is σ = 11305124. Its totient is φ = 11305122.

The previous prime is 11305109. The next prime is 11305127. The reversal of 11305123 is 32150311.

It is a strong prime.

It is an emirp because it is prime and its reverse (32150311) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11305123 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11305097 and 11305106.

It is not a weakly prime, because it can be changed into another prime (11305127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5652561 + 5652562.

It is an arithmetic number, because the mean of its divisors is an integer number (5652562).

Almost surely, 2^11305123 is an apocalyptic number.

11305123 is a deficient number, since it is larger than the sum of its proper divisors (1).

11305123 is an equidigital number, since it uses as much as digits as its factorization.

11305123 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 11305123 is about 3362.3091767415. The cubic root of 11305123 is about 224.4356093328.

Adding to 11305123 its reverse (32150311), we get a palindrome (43455434).

The spelling of 11305123 in words is "eleven million, three hundred five thousand, one hundred twenty-three".