11430021 has 8 divisors (see below), whose sum is σ = 15611904. Its totient is φ = 7434080.

The previous prime is 11430019. The next prime is 11430037. The reversal of 11430021 is 12003411.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11430021 - 2¹ = 11430019 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11429979 and 11430006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11430421) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 46341 + ... + 46586.

It is an arithmetic number, because the mean of its divisors is an integer number (1951488).

Almost surely, 2^11430021 is an apocalyptic number.

It is an amenable number.

11430021 is a deficient number, since it is larger than the sum of its proper divisors (4181883).

11430021 is an equidigital number, since it uses as much as digits as its factorization.

11430021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92971.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 11430021 is about 3380.8314066217. The cubic root of 11430021 is about 225.2590990505.

Adding to 11430021 its reverse (12003411), we get a palindrome (23433432).

It can be divided in two parts, 114 and 30021, that added together give a triangular number (30135 = T₂₄₅).

The spelling of 11430021 in words is "eleven million, four hundred thirty thousand, twenty-one".