103521313 has 8 divisors (see below), whose sum is σ = 125269632. Its totient is φ = 83512896.

The previous prime is 103521293. The next prime is 103521317. The reversal of 103521313 is 313125301.

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 103521313 - 2⁵ = 103521281 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (103521317) 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, 434845 + ... + 435082.

It is an arithmetic number, because the mean of its divisors is an integer number (15658704).

Almost surely, 2^103521313 is an apocalyptic number.

It is an amenable number.

103521313 is a deficient number, since it is larger than the sum of its proper divisors (21748319).

103521313 is an equidigital number, since it uses as much as digits as its factorization.

103521313 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 869951.

The product of its (nonzero) digits is 270, while the sum is 19.

The square root of 103521313 is about 10174.5423975725. The cubic root of 103521313 is about 469.5443191718.

Adding to 103521313 its reverse (313125301), we get a palindrome (416646614).

The spelling of 103521313 in words is "one hundred three million, five hundred twenty-one thousand, three hundred thirteen".