11138203 has 2 divisors, whose sum is σ = 11138204. Its totient is φ = 11138202.

The previous prime is 11138191. The next prime is 11138243. The reversal of 11138203 is 30283111.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11138203 is a prime.

It is not a weakly prime, because it can be changed into another prime (11138243) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5569101 + 5569102.

It is an arithmetic number, because the mean of its divisors is an integer number (5569102).

Almost surely, 2^11138203 is an apocalyptic number.

11138203 is a deficient number, since it is larger than the sum of its proper divisors (1).

11138203 is an equidigital number, since it uses as much as digits as its factorization.

11138203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 11138203 is about 3337.3946425318. The cubic root of 11138203 is about 223.3255315212.

It can be divided in two parts, 1113 and 8203, that added together give a triangular number (9316 = T₁₃₆).

The spelling of 11138203 in words is "eleven million, one hundred thirty-eight thousand, two hundred three".