11310321 has 16 divisors (see below), whose sum is σ = 17419968. Its totient is φ = 6451200.

The previous prime is 11310307. The next prime is 11310323. The reversal of 11310321 is 12301311.

11310321 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11310321 - 2¹³ = 11302129 is a prime.

It is a super-2 number, since 2×11310321² = 255846722246082, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11310297 and 11310306.

It is not an unprimeable number, because it can be changed into a prime (11310323) 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, 9520 + ... + 10641.

It is an arithmetic number, because the mean of its divisors is an integer number (1088748).

Almost surely, 2^11310321 is an apocalyptic number.

11310321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

11310321 is a deficient number, since it is larger than the sum of its proper divisors (6109647).

11310321 is a wasteful number, since it uses less digits than its factorization.

11310321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20192.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 11310321 is about 3363.0820685794. The cubic root of 11310321 is about 224.4700019276.

Adding to 11310321 its reverse (12301311), we get a palindrome (23611632).

The spelling of 11310321 in words is "eleven million, three hundred ten thousand, three hundred twenty-one".