11031985 has 8 divisors (see below), whose sum is σ = 13265280. Its totient is φ = 8807664.

The previous prime is 11031983. The next prime is 11032039. The reversal of 11031985 is 58913011.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11031985 - 2¹ = 11031983 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11031983) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 856 + ... + 4774.

It is an arithmetic number, because the mean of its divisors is an integer number (1658160).

Almost surely, 2^11031985 is an apocalyptic number.

It is an amenable number.

11031985 is a deficient number, since it is larger than the sum of its proper divisors (2233295).

11031985 is an equidigital number, since it uses as much as digits as its factorization.

11031985 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4487.

The product of its (nonzero) digits is 1080, while the sum is 28.

The square root of 11031985 is about 3321.4432104132. The cubic root of 11031985 is about 222.6133580517.

Adding to 11031985 its reverse (58913011), we get a palindrome (69944996).

The spelling of 11031985 in words is "eleven million, thirty-one thousand, nine hundred eighty-five".