11102420 has 36 divisors (see below), whose sum is σ = 27124020. Its totient is φ = 3806208.

The previous prime is 11102417. The next prime is 11102453. The reversal of 11102420 is 2420111.

It can be written as a sum of positive squares in 2 ways, for example, as 3952144 + 7150276 = 1988^2 + 2674^2 .

It is a congruent number.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 4685 + ... + 6644.

It is an arithmetic number, because the mean of its divisors is an integer number (753445).

Almost surely, 2^11102420 is an apocalyptic number.

11102420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11102420 is an abundant number, since it is smaller than the sum of its proper divisors (16021600).

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

11102420 is a wasteful number, since it uses less digits than its factorization.

11102420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11352 (or 11343 counting only the distinct ones).

The product of its (nonzero) digits is 16, while the sum is 11.

The square root of 11102420 is about 3332.0294116349. The cubic root of 11102420 is about 223.0861203562.

Adding to 11102420 its reverse (2420111), we get a palindrome (13522531).

The spelling of 11102420 in words is "eleven million, one hundred two thousand, four hundred twenty".