11721301 has 4 divisors (see below), whose sum is σ = 11731212. Its totient is φ = 11711392.

The previous prime is 11721293. The next prime is 11721323. The reversal of 11721301 is 10312711.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length, and also an emirpimes, since its reverse is a distinct semiprime: 10312711 = 1823 ⋅5657.

It can be written as a sum of positive squares in 2 ways, for example, as 11122225 + 599076 = 3335^2 + 774^2 .

It is a cyclic number.

It is not a de Polignac number, because 11721301 - 2³ = 11721293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11721331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2896 + ... + 5641.

It is an arithmetic number, because the mean of its divisors is an integer number (2932803).

Almost surely, 2^11721301 is an apocalyptic number.

It is an amenable number.

11721301 is a deficient number, since it is larger than the sum of its proper divisors (9911).

11721301 is an equidigital number, since it uses as much as digits as its factorization.

11721301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9910.

The product of its (nonzero) digits is 42, while the sum is 16.

The square root of 11721301 is about 3423.6385615307. The cubic root of 11721301 is about 227.1565545958.

The spelling of 11721301 in words is "eleven million, seven hundred twenty-one thousand, three hundred one".