11138803 has 4 divisors (see below), whose sum is σ = 11995648. Its totient is φ = 10281960.

The previous prime is 11138767. The next prime is 11138821. The reversal of 11138803 is 30883111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30883111 = 7 ⋅4411873.

It is not a de Polignac number, because 11138803 - 2¹³ = 11130611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11138833) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 428403 + ... + 428428.

It is an arithmetic number, because the mean of its divisors is an integer number (2998912).

Almost surely, 2^11138803 is an apocalyptic number.

11138803 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

11138803 is a deficient number, since it is larger than the sum of its proper divisors (856845).

11138803 is an equidigital number, since it uses as much as digits as its factorization.

11138803 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 856844.

The product of its (nonzero) digits is 576, while the sum is 25.

The square root of 11138803 is about 3337.4845317994. The cubic root of 11138803 is about 223.3295415311.

The spelling of 11138803 in words is "eleven million, one hundred thirty-eight thousand, eight hundred three".