11403320 has 32 divisors (see below), whose sum is σ = 25930800. Its totient is φ = 4512768.

The previous prime is 11403313. The next prime is 11403323. The reversal of 11403320 is 2330411.

It is a junction number, because it is equal to n+sod(n) for n = 11403295 and 11403304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11403323) 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, 2411 + ... + 5349.

Almost surely, 2^11403320 is an apocalyptic number.

11403320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11403320 is an abundant number, since it is smaller than the sum of its proper divisors (14527480).

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

11403320 is a wasteful number, since it uses less digits than its factorization.

11403320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3047 (or 3043 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 11403320 is about 3376.8802170050. The cubic root of 11403320 is about 225.0835574431.

Adding to 11403320 its reverse (2330411), we get a palindrome (13733731).

The spelling of 11403320 in words is "eleven million, four hundred three thousand, three hundred twenty".