11031990 has 16 divisors (see below), whose sum is σ = 26476848. Its totient is φ = 2941856.

The previous prime is 11031983. The next prime is 11032039. The reversal of 11031990 is 9913011.

11031990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 11031990.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 183837 + ... + 183896.

It is an arithmetic number, because the mean of its divisors is an integer number (1654803).

Almost surely, 2^11031990 is an apocalyptic number.

11031990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

11031990 is an abundant number, since it is smaller than the sum of its proper divisors (15444858).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11031990 is a wasteful number, since it uses less digits than its factorization.

11031990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 367743.

The product of its (nonzero) digits is 243, while the sum is 24.

The square root of 11031990 is about 3321.4439630980. The cubic root of 11031990 is about 222.6133916832.

It can be divided in two parts, 11031 and 990, that added together give a palindrome (12021).

The spelling of 11031990 in words is "eleven million, thirty-one thousand, nine hundred ninety".