11020203203220 has 36 divisors (see below), whose sum is σ = 33427949716980. Its totient is φ = 2938720854144.

The previous prime is 11020203203183. The next prime is 11020203203231. The reversal of 11020203203220 is 2230230202011.

11020203203220 is a `hidden beast` number, since 1 + 1 + 0 + 2 + 0 + 20 + 320 + 322 + 0 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 8032020782724 + 2988182420496 = 2834082^2 + 1728636^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 11020203203193 and 11020203203202.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 30611675385 + ... + 30611675744.

It is an arithmetic number, because the mean of its divisors is an integer number (928554158805).

Almost surely, 2^{11020203203220} is an apocalyptic number.

11020203203220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11020203203220 is an abundant number, since it is smaller than the sum of its proper divisors (22407746513760).

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

11020203203220 is a wasteful number, since it uses less digits than its factorization.

11020203203220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 61223351144 (or 61223351139 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 11020203203220 its reverse (2230230202011), we get a palindrome (13250433405231).

The spelling of 11020203203220 in words is "eleven trillion, twenty billion, two hundred three million, two hundred three thousand, two hundred twenty".