11421307 has 4 divisors (see below), whose sum is σ = 11435760. Its totient is φ = 11406856.

The previous prime is 11421269. The next prime is 11421323. The reversal of 11421307 is 70312411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 70312411 = 13 ⋅5408647.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11421307 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11421367) 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, 5968 + ... + 7645.

It is an arithmetic number, because the mean of its divisors is an integer number (2858940).

Almost surely, 2^11421307 is an apocalyptic number.

11421307 is a deficient number, since it is larger than the sum of its proper divisors (14453).

11421307 is an equidigital number, since it uses as much as digits as its factorization.

11421307 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14452.

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

The square root of 11421307 is about 3379.5424246486. The cubic root of 11421307 is about 225.2018402806.

Adding to 11421307 its reverse (70312411), we get a palindrome (81733718).

The spelling of 11421307 in words is "eleven million, four hundred twenty-one thousand, three hundred seven".