11312603 has 2 divisors, whose sum is σ = 11312604. Its totient is φ = 11312602.

The previous prime is 11312557. The next prime is 11312617. The reversal of 11312603 is 30621311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11312603 - 2²⁰ = 10264027 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (11312663) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5656301 + 5656302.

It is an arithmetic number, because the mean of its divisors is an integer number (5656302).

Almost surely, 2^11312603 is an apocalyptic number.

11312603 is a deficient number, since it is larger than the sum of its proper divisors (1).

11312603 is an equidigital number, since it uses as much as digits as its factorization.

11312603 is an odious number, because the sum of its binary digits is odd.

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

The square root of 11312603 is about 3363.4213235930. The cubic root of 11312603 is about 224.4850974643.

Adding to 11312603 its reverse (30621311), we get a palindrome (41933914).

The spelling of 11312603 in words is "eleven million, three hundred twelve thousand, six hundred three".