100103513 has 8 divisors (see below), whose sum is σ = 101685768. Its totient is φ = 98527104.

The previous prime is 100103489. The next prime is 100103543. The reversal of 100103513 is 315301001.

It can be written as a sum of positive squares in 4 ways, for example, as 4787344 + 95316169 = 2188^2 + 9763^2 .

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 100103513 - 2²⁴ = 83326297 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (100103543) 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, 43631 + ... + 45867.

It is an arithmetic number, because the mean of its divisors is an integer number (12710721).

Almost surely, 2^100103513 is an apocalyptic number.

It is an amenable number.

100103513 is a deficient number, since it is larger than the sum of its proper divisors (1582255).

100103513 is an equidigital number, since it uses as much as digits as its factorization.

100103513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2923.

The product of its (nonzero) digits is 45, while the sum is 14.

The square root of 100103513 is about 10005.1743113251. The cubic root of 100103513 is about 464.3189830610.

Adding to 100103513 its reverse (315301001), we get a palindrome (415404514).

The spelling of 100103513 in words is "one hundred million, one hundred three thousand, five hundred thirteen".