11662003 has 2 divisors, whose sum is σ = 11662004. Its totient is φ = 11662002.

The previous prime is 11661971. The next prime is 11662033. The reversal of 11662003 is 30026611.

It is a strong prime.

It is an emirp because it is prime and its reverse (30026611) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 11662003 - 2⁵ = 11661971 is a prime.

It is not a weakly prime, because it can be changed into another prime (11662033) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5831001 + 5831002.

It is an arithmetic number, because the mean of its divisors is an integer number (5831002).

Almost surely, 2^11662003 is an apocalyptic number.

11662003 is a deficient number, since it is larger than the sum of its proper divisors (1).

11662003 is an equidigital number, since it uses as much as digits as its factorization.

11662003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 19.

The square root of 11662003 is about 3414.9674961850. The cubic root of 11662003 is about 226.7728455349.

Adding to 11662003 its reverse (30026611), we get a palindrome (41688614).

The spelling of 11662003 in words is "eleven million, six hundred sixty-two thousand, three".