103130321 has 16 divisors (see below), whose sum is σ = 125015808. Its totient is φ = 83160000.

The previous prime is 103130311. The next prime is 103130323. The reversal of 103130321 is 123031301.

It is not a de Polignac number, because 103130321 - 2⁶ = 103130257 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103130296 and 103130305.

It is not an unprimeable number, because it can be changed into a prime (103130323) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4571 + ... + 15071.

It is an arithmetic number, because the mean of its divisors is an integer number (7813488).

Almost surely, 2^103130321 is an apocalyptic number.

It is an amenable number.

103130321 is a deficient number, since it is larger than the sum of its proper divisors (21885487).

103130321 is a wasteful number, since it uses less digits than its factorization.

103130321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10592.

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 103130321 is about 10155.3099903450. The cubic root of 103130321 is about 468.9524291671.

Adding to 103130321 its reverse (123031301), we get a palindrome (226161622).

The spelling of 103130321 in words is "one hundred three million, one hundred thirty thousand, three hundred twenty-one".