10503121 has 8 divisors (see below), whose sum is σ = 10844640. Its totient is φ = 10167168.

The previous prime is 10503089. The next prime is 10503139. The reversal of 10503121 is 12130501.

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

It is a cyclic number.

It is not a de Polignac number, because 10503121 - 2⁵ = 10503089 is a prime.

It is a super-2 number, since 2×10503121² = 220631101481282, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (10503221) 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, 2625 + ... + 5281.

It is an arithmetic number, because the mean of its divisors is an integer number (1355580).

Almost surely, 2^10503121 is an apocalyptic number.

It is an amenable number.

10503121 is a deficient number, since it is larger than the sum of its proper divisors (341519).

10503121 is an equidigital number, since it uses as much as digits as its factorization.

10503121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2783.

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 10503121 is about 3240.8518941784. The cubic root of 10503121 is about 218.9976508439.

Adding to 10503121 its reverse (12130501), we get a palindrome (22633622).

The spelling of 10503121 in words is "ten million, five hundred three thousand, one hundred twenty-one".