11070321 has 4 divisors (see below), whose sum is σ = 14760432. Its totient is φ = 7380212.

The previous prime is 11070299. The next prime is 11070329. The reversal of 11070321 is 12307011.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11070321 - 2¹⁵ = 11037553 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 11070321.

It is not an unprimeable number, because it can be changed into a prime (11070329) 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, 1845051 + ... + 1845056.

It is an arithmetic number, because the mean of its divisors is an integer number (3690108).

Almost surely, 2^11070321 is an apocalyptic number.

It is an amenable number.

11070321 is a deficient number, since it is larger than the sum of its proper divisors (3690111).

11070321 is an equidigital number, since it uses as much as digits as its factorization.

11070321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3690110.

The product of its (nonzero) digits is 42, while the sum is 15.

The square root of 11070321 is about 3327.2091908986. The cubic root of 11070321 is about 222.8709194193.

Adding to 11070321 its reverse (12307011), we get a palindrome (23377332).

The spelling of 11070321 in words is "eleven million, seventy thousand, three hundred twenty-one".