10321018 has 4 divisors (see below), whose sum is σ = 15481530. Its totient is φ = 5160508.

The previous prime is 10320983. The next prime is 10321021. The reversal of 10321018 is 81012301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 81012301 = 43 ⋅1884007.

It can be written as a sum of positive squares in only one way, i.e., 9840769 + 480249 = 3137^2 + 693^2 .

It is an alternating number because its digits alternate between odd and even.

It is a junction number, because it is equal to n+sod(n) for n = 10320992 and 10321010.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2580253 + ... + 2580256.

Almost surely, 2^10321018 is an apocalyptic number.

10321018 is a deficient number, since it is larger than the sum of its proper divisors (5160512).

10321018 is an equidigital number, since it uses as much as digits as its factorization.

10321018 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5160511.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 10321018 is about 3212.6341217138. The cubic root of 10321018 is about 217.7246052524.

Adding to 10321018 its reverse (81012301), we get a palindrome (91333319).

The spelling of 10321018 in words is "ten million, three hundred twenty-one thousand, eighteen".