11420311 has 16 divisors (see below), whose sum is σ = 14549760. Its totient is φ = 8726400.

The previous prime is 11420303. The next prime is 11420329. The reversal of 11420311 is 11302411.

11420311 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11420311 - 2³ = 11420303 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11420291 and 11420300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11420341) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 265 + ... + 4786.

It is an arithmetic number, because the mean of its divisors is an integer number (909360).

Almost surely, 2^11420311 is an apocalyptic number.

11420311 is a deficient number, since it is larger than the sum of its proper divisors (3129449).

11420311 is a wasteful number, since it uses less digits than its factorization.

11420311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5094.

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 11420311 is about 3379.3950642090. The cubic root of 11420311 is about 225.1952938158.

Adding to 11420311 its reverse (11302411), we get a palindrome (22722722).

The spelling of 11420311 in words is "eleven million, four hundred twenty thousand, three hundred eleven".