103143321 has 32 divisors (see below), whose sum is σ = 156182400. Its totient is φ = 67262400.

The previous prime is 103143319. The next prime is 103143323. The reversal of 103143321 is 123341301.

It is an interprime number because it is at equal distance from previous prime (103143319) and next prime (103143323).

It is not a de Polignac number, because 103143321 - 2¹ = 103143319 is a prime.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 103143294 and 103143303.

It is not an unprimeable number, because it can be changed into a prime (103143323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 297070 + ... + 297416.

It is an arithmetic number, because the mean of its divisors is an integer number (4880700).

Almost surely, 2^103143321 is an apocalyptic number.

It is an amenable number.

103143321 is a deficient number, since it is larger than the sum of its proper divisors (53039079).

103143321 is a wasteful number, since it uses less digits than its factorization.

103143321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 560 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 103143321 is about 10155.9500294163. The cubic root of 103143321 is about 468.9721327983.

Adding to 103143321 its reverse (123341301), we get a palindrome (226484622).

The spelling of 103143321 in words is "one hundred three million, one hundred forty-three thousand, three hundred twenty-one".