11020500 has 144 divisors (see below), whose sum is σ = 36341760. Its totient is φ = 2808000.

The previous prime is 11020483. The next prime is 11020501. The reversal of 11020500 is 502011.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11020501) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 139461 + ... + 139539.

Almost surely, 2^11020500 is an apocalyptic number.

11020500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 11020500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (18170880).

11020500 is an abundant number, since it is smaller than the sum of its proper divisors (25321260).

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

11020500 is a wasteful number, since it uses less digits than its factorization.

11020500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135 (or 120 counting only the distinct ones).

The product of its (nonzero) digits is 10, while the sum is 9.

The square root of 11020500 is about 3319.7138430895. The cubic root of 11020500 is about 222.5360796602.

Adding to 11020500 its reverse (502011), we get a palindrome (11522511).

The spelling of 11020500 in words is "eleven million, twenty thousand, five hundred".