11320420 has 24 divisors (see below), whose sum is σ = 24280704. Its totient is φ = 4431456.

The previous prime is 11320417. The next prime is 11320423. The reversal of 11320420 is 2402311.

11320420 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (11320417) and next prime (11320423).

It is a nialpdrome in base 11.

It is a self number, because there is not a number n which added to its sum of digits gives 11320420.

It is not an unprimeable number, because it can be changed into a prime (11320423) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5082 + ... + 6961.

It is an arithmetic number, because the mean of its divisors is an integer number (1011696).

Almost surely, 2^11320420 is an apocalyptic number.

11320420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11320420 is an abundant number, since it is smaller than the sum of its proper divisors (12960284).

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

11320420 is a wasteful number, since it uses less digits than its factorization.

11320420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12099 (or 12097 counting only the distinct ones).

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

The square root of 11320420 is about 3364.5831836945. The cubic root of 11320420 is about 224.5367919026.

Adding to 11320420 its reverse (2402311), we get a palindrome (13722731).

The spelling of 11320420 in words is "eleven million, three hundred twenty thousand, four hundred twenty".