11403013 has 2 divisors, whose sum is σ = 11403014. Its totient is φ = 11403012.

The previous prime is 11402977. The next prime is 11403017. The reversal of 11403013 is 31030411.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11068929 + 334084 = 3327^2 + 578^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11403013 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11402984 and 11403002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11403017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5701506 + 5701507.

It is an arithmetic number, because the mean of its divisors is an integer number (5701507).

Almost surely, 2^11403013 is an apocalyptic number.

It is an amenable number.

11403013 is a deficient number, since it is larger than the sum of its proper divisors (1).

11403013 is an equidigital number, since it uses as much as digits as its factorization.

11403013 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 11403013 is about 3376.8347605413. The cubic root of 11403013 is about 225.0815375263.

Adding to 11403013 its reverse (31030411), we get a palindrome (42433424).

The spelling of 11403013 in words is "eleven million, four hundred three thousand, thirteen".