10040321 has 2 divisors, whose sum is σ = 10040322. Its totient is φ = 10040320.

The previous prime is 10040299. The next prime is 10040333. The reversal of 10040321 is 12304001.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 9991921 + 48400 = 3161^2 + 220^2 .

It is a cyclic number.

It is not a de Polignac number, because 10040321 - 2¹⁰ = 10039297 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (10040221) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5020160 + 5020161.

It is an arithmetic number, because the mean of its divisors is an integer number (5020161).

Almost surely, 2^10040321 is an apocalyptic number.

It is an amenable number.

10040321 is a deficient number, since it is larger than the sum of its proper divisors (1).

10040321 is an equidigital number, since it uses as much as digits as its factorization.

10040321 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 10040321 is about 3168.6465564970. The cubic root of 10040321 is about 215.7326438938.

Adding to 10040321 its reverse (12304001), we get a palindrome (22344322).

The spelling of 10040321 in words is "ten million, forty thousand, three hundred twenty-one".