11203420 has 12 divisors (see below), whose sum is σ = 23527224. Its totient is φ = 4481360.

The previous prime is 11203417. The next prime is 11203421. The reversal of 11203420 is 2430211.

It is a self number, because there is not a number n which added to its sum of digits gives 11203420.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11203421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 280066 + ... + 280105.

It is an arithmetic number, because the mean of its divisors is an integer number (1960602).

Almost surely, 2^11203420 is an apocalyptic number.

11203420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11203420 is an abundant number, since it is smaller than the sum of its proper divisors (12323804).

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

11203420 is a wasteful number, since it uses less digits than its factorization.

11203420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 560180 (or 560178 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 11203420 is about 3347.1510273664. The cubic root of 11203420 is about 223.7605594093.

Adding to 11203420 its reverse (2430211), we get a palindrome (13633631).

The spelling of 11203420 in words is "eleven million, two hundred three thousand, four hundred twenty".