130331305 has 16 divisors (see below), whose sum is σ = 168666624. Its totient is φ = 96108480.

The previous prime is 130331303. The next prime is 130331339. The reversal of 130331305 is 503133031.

It is not a de Polignac number, because 130331305 - 2¹ = 130331303 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (130331303) 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, 85500 + ... + 87010.

It is an arithmetic number, because the mean of its divisors is an integer number (10541664).

Almost surely, 2^130331305 is an apocalyptic number.

It is an amenable number.

130331305 is a deficient number, since it is larger than the sum of its proper divisors (38335319).

130331305 is a wasteful number, since it uses less digits than its factorization.

130331305 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2856.

The product of its (nonzero) digits is 405, while the sum is 19.

The square root of 130331305 is about 11416.2736915335. The cubic root of 130331305 is about 507.0096763102.

Adding to 130331305 its reverse (503133031), we get a palindrome (633464336).

The spelling of 130331305 in words is "one hundred thirty million, three hundred thirty-one thousand, three hundred five".