11532403 has 4 divisors (see below), whose sum is σ = 11904448. Its totient is φ = 11160360.

The previous prime is 11532397. The next prime is 11532431. The reversal of 11532403 is 30423511.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11532403 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11532463) 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, 185976 + ... + 186037.

It is an arithmetic number, because the mean of its divisors is an integer number (2976112).

Almost surely, 2^11532403 is an apocalyptic number.

11532403 is a deficient number, since it is larger than the sum of its proper divisors (372045).

11532403 is an equidigital number, since it uses as much as digits as its factorization.

11532403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 372044.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 11532403 is about 3395.9391926240. The cubic root of 11532403 is about 225.9296711231.

Adding to 11532403 its reverse (30423511), we get a palindrome (41955914).

It can be divided in two parts, 11532 and 403, that added together give a triangular number (11935 = T₁₅₄).

The spelling of 11532403 in words is "eleven million, five hundred thirty-two thousand, four hundred three".