11307421 has 4 divisors (see below), whose sum is σ = 11799072. Its totient is φ = 10815772.

The previous prime is 11307407. The next prime is 11307463. The reversal of 11307421 is 12470311.

11307421 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11307421 - 2⁷ = 11307293 is a prime.

It is a Duffinian number.

It is a nialpdrome in base 15.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11307221) 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, 245791 + ... + 245836.

It is an arithmetic number, because the mean of its divisors is an integer number (2949768).

Almost surely, 2^11307421 is an apocalyptic number.

It is an amenable number.

11307421 is a deficient number, since it is larger than the sum of its proper divisors (491651).

11307421 is an equidigital number, since it uses as much as digits as its factorization.

11307421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 491650.

The product of its (nonzero) digits is 168, while the sum is 19.

The square root of 11307421 is about 3362.6508888078. The cubic root of 11307421 is about 224.4508153619.

Adding to 11307421 its reverse (12470311), we get a palindrome (23777732).

The spelling of 11307421 in words is "eleven million, three hundred seven thousand, four hundred twenty-one".