11081403 has 6 divisors (see below), whose sum is σ = 16006484. Its totient is φ = 7387596.

The previous prime is 11081387. The next prime is 11081407. The reversal of 11081403 is 30418011.

It is not a de Polignac number, because 11081403 - 2⁴ = 11081387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11081407) 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 5 ways as a sum of consecutive naturals, for example, 615625 + ... + 615642.

Almost surely, 2^11081403 is an apocalyptic number.

11081403 is a deficient number, since it is larger than the sum of its proper divisors (4925081).

11081403 is a wasteful number, since it uses less digits than its factorization.

11081403 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1231273 (or 1231270 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 18.

The square root of 11081403 is about 3328.8741339979. The cubic root of 11081403 is about 222.9452632989.

Adding to 11081403 its reverse (30418011), we get a palindrome (41499414).

The spelling of 11081403 in words is "eleven million, eighty-one thousand, four hundred three".