11421011 has 4 divisors (see below), whose sum is σ = 13052592. Its totient is φ = 9789432.

The previous prime is 11420971. The next prime is 11421017. The reversal of 11421011 is 11012411.

11421011 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.

It is a cyclic number.

It is not a de Polignac number, because 11421011 - 2⁶ = 11420947 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11420983 and 11421001.

It is not an unprimeable number, because it can be changed into a prime (11421017) 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, 815780 + ... + 815793.

It is an arithmetic number, because the mean of its divisors is an integer number (3263148).

Almost surely, 2^11421011 is an apocalyptic number.

11421011 is a deficient number, since it is larger than the sum of its proper divisors (1631581).

11421011 is an equidigital number, since it uses as much as digits as its factorization.

11421011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1631580.

The product of its (nonzero) digits is 8, while the sum is 11.

The square root of 11421011 is about 3379.4986314541. The cubic root of 11421011 is about 225.1998947846.

Adding to 11421011 its reverse (11012411), we get a palindrome (22433422).

The spelling of 11421011 in words is "eleven million, four hundred twenty-one thousand, eleven".