11430421 has 2 divisors, whose sum is σ = 11430422. Its totient is φ = 11430420.

The previous prime is 11430371. The next prime is 11430449. The reversal of 11430421 is 12403411.

11430421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10595025 + 835396 = 3255^2 + 914^2 .

It is a cyclic number.

It is not a de Polignac number, because 11430421 - 2⁹ = 11429909 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11430395 and 11430404.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11430451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715210 + 5715211.

It is an arithmetic number, because the mean of its divisors is an integer number (5715211).

Almost surely, 2^11430421 is an apocalyptic number.

It is an amenable number.

11430421 is a deficient number, since it is larger than the sum of its proper divisors (1).

11430421 is an equidigital number, since it uses as much as digits as its factorization.

11430421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 11430421 is about 3380.8905631505. The cubic root of 11430421 is about 225.2617267094.

Adding to 11430421 its reverse (12403411), we get a palindrome (23833832).

The spelling of 11430421 in words is "eleven million, four hundred thirty thousand, four hundred twenty-one".