11421135 has 32 divisors (see below), whose sum is σ = 22152960. Its totient is φ = 5536800.

The previous prime is 11421121. The next prime is 11421143. The reversal of 11421135 is 53112411.

It is not a de Polignac number, because 11421135 - 2⁴ = 11421119 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2361 + ... + 5330.

It is an arithmetic number, because the mean of its divisors is an integer number (692280).

Almost surely, 2^11421135 is an apocalyptic number.

11421135 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11421135 is a deficient number, since it is larger than the sum of its proper divisors (10731825).

11421135 is a wasteful number, since it uses less digits than its factorization.

11421135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7716 (or 7710 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 11421135 is about 3379.5169773209. The cubic root of 11421135 is about 225.2007097938.

Adding to 11421135 its reverse (53112411), we get a palindrome (64533546).

The spelling of 11421135 in words is "eleven million, four hundred twenty-one thousand, one hundred thirty-five".