11420403 has 16 divisors (see below), whose sum is σ = 15876000. Its totient is φ = 7293440.

The previous prime is 11420401. The next prime is 11420417. The reversal of 11420403 is 30402411.

It is a cyclic number.

It is not a de Polignac number, because 11420403 - 2¹ = 11420401 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11420401) 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 15 ways as a sum of consecutive naturals, for example, 12523 + ... + 13403.

It is an arithmetic number, because the mean of its divisors is an integer number (992250).

Almost surely, 2^11420403 is an apocalyptic number.

11420403 is a deficient number, since it is larger than the sum of its proper divisors (4455597).

11420403 is a wasteful number, since it uses less digits than its factorization.

11420403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062.

The product of its (nonzero) digits is 96, while the sum is 15.

The square root of 11420403 is about 3379.4086760852. The cubic root of 11420403 is about 225.1958985253.

Adding to 11420403 its reverse (30402411), we get a palindrome (41822814).

The spelling of 11420403 in words is "eleven million, four hundred twenty thousand, four hundred three".