11231711 has 4 divisors (see below), whose sum is σ = 11358000. Its totient is φ = 11105424.

The previous prime is 11231699. The next prime is 11231723. The reversal of 11231711 is 11713211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11713211 = 59 ⋅198529.

It is an interprime number because it is at equal distance from previous prime (11231699) and next prime (11231723).

It is a cyclic number.

It is not a de Polignac number, because 11231711 - 2¹⁴ = 11215327 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11231711.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11231761) 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, 63011 + ... + 63188.

It is an arithmetic number, because the mean of its divisors is an integer number (2839500).

Almost surely, 2^11231711 is an apocalyptic number.

11231711 is a deficient number, since it is larger than the sum of its proper divisors (126289).

11231711 is an equidigital number, since it uses as much as digits as its factorization.

11231711 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 126288.

The product of its digits is 42, while the sum is 17.

The square root of 11231711 is about 3351.3744941442. The cubic root of 11231711 is about 223.9487486381.

Adding to 11231711 its reverse (11713211), we get a palindrome (22944922).

The spelling of 11231711 in words is "eleven million, two hundred thirty-one thousand, seven hundred eleven".