11201239 has 4 divisors (see below), whose sum is σ = 12801424. Its totient is φ = 9601056.

The previous prime is 11201237. The next prime is 11201251. The reversal of 11201239 is 93210211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 93210211 = 31 ⋅3006781.

It is a cyclic number.

It is not a de Polignac number, because 11201239 - 2¹ = 11201237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11201233) 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, 800082 + ... + 800095.

It is an arithmetic number, because the mean of its divisors is an integer number (3200356).

Almost surely, 2^11201239 is an apocalyptic number.

11201239 is a deficient number, since it is larger than the sum of its proper divisors (1600185).

11201239 is an equidigital number, since it uses as much as digits as its factorization.

11201239 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1600184.

The product of its (nonzero) digits is 108, while the sum is 19.

The square root of 11201239 is about 3346.8252120480. The cubic root of 11201239 is about 223.7460384430.

The spelling of 11201239 in words is "eleven million, two hundred one thousand, two hundred thirty-nine".