11321057 has 8 divisors (see below), whose sum is σ = 12535392. Its totient is φ = 10137600.

The previous prime is 11321053. The next prime is 11321071. The reversal of 11321057 is 75012311.

11321057 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11321057 - 2² = 11321053 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11321053) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6944 + ... + 8417.

It is an arithmetic number, because the mean of its divisors is an integer number (1566924).

Almost surely, 2^11321057 is an apocalyptic number.

It is an amenable number.

11321057 is a deficient number, since it is larger than the sum of its proper divisors (1214335).

11321057 is a wasteful number, since it uses less digits than its factorization.

11321057 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15439.

The product of its (nonzero) digits is 210, while the sum is 20.

The square root of 11321057 is about 3364.6778449058. The cubic root of 11321057 is about 224.5410033852.

Adding to 11321057 its reverse (75012311), we get a palindrome (86333368).

The spelling of 11321057 in words is "eleven million, three hundred twenty-one thousand, fifty-seven".