11303257 has 8 divisors (see below), whose sum is σ = 13162176. Its totient is φ = 9505392.

The previous prime is 11303221. The next prime is 11303261. The reversal of 11303257 is 75230311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11303257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11303207) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14863 + ... + 15604.

It is an arithmetic number, because the mean of its divisors is an integer number (1645272).

Almost surely, 2^11303257 is an apocalyptic number.

It is an amenable number.

11303257 is a deficient number, since it is larger than the sum of its proper divisors (1858919).

11303257 is an equidigital number, since it uses as much as digits as its factorization.

11303257 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30527.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 11303257 is about 3362.0316774236. The cubic root of 11303257 is about 224.4232603623.

Adding to 11303257 its reverse (75230311), we get a palindrome (86533568).

The spelling of 11303257 in words is "eleven million, three hundred three thousand, two hundred fifty-seven".