10121321 has 8 divisors (see below), whose sum is σ = 11594880. Its totient is φ = 8654688.

The previous prime is 10121317. The next prime is 10121323. The reversal of 10121321 is 12312101.

10121321 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 10121321 - 2² = 10121317 is a prime.

It is a super-2 number, since 2×10121321² = 204882277570082, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10121323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1925 + ... + 4893.

It is an arithmetic number, because the mean of its divisors is an integer number (1449360).

Almost surely, 2^10121321 is an apocalyptic number.

It is an amenable number.

10121321 is a deficient number, since it is larger than the sum of its proper divisors (1473559).

10121321 is an equidigital number, since it uses as much as digits as its factorization.

10121321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3463.

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 10121321 is about 3181.4023637384. The cubic root of 10121321 is about 216.3112297241.

Adding to 10121321 its reverse (12312101), we get a palindrome (22433422).

The spelling of 10121321 in words is "ten million, one hundred twenty-one thousand, three hundred twenty-one".