103031305 has 16 divisors (see below), whose sum is σ = 140981904. Its totient is φ = 71608320.

The previous prime is 103031249. The next prime is 103031317. The reversal of 103031305 is 503130301.

It can be written as a sum of positive squares in 8 ways, for example, as 69696 + 102961609 = 264^2 + 10147^2 .

It is not a de Polignac number, because 103031305 - 2⁷ = 103031177 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 45516 + ... + 47725.

It is an arithmetic number, because the mean of its divisors is an integer number (8811369).

Almost surely, 2^103031305 is an apocalyptic number.

It is an amenable number.

103031305 is a deficient number, since it is larger than the sum of its proper divisors (37950599).

103031305 is a wasteful number, since it uses less digits than its factorization.

103031305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 93276.

The product of its (nonzero) digits is 135, while the sum is 16.

The square root of 103031305 is about 10150.4337345751. The cubic root of 103031305 is about 468.8022998238.

Adding to 103031305 its reverse (503130301), we get a palindrome (606161606).

The spelling of 103031305 in words is "one hundred three million, thirty-one thousand, three hundred five".