130311205 has 16 divisors (see below), whose sum is σ = 167847984. Its totient is φ = 96768000.

The previous prime is 130311187. The next prime is 130311227. The reversal of 130311205 is 502113031.

It can be written as a sum of positive squares in 8 ways, for example, as 214369 + 130096836 = 463^2 + 11406^2 .

It is not a de Polignac number, because 130311205 - 2⁵ = 130311173 is a prime.

It is a Duffinian number.

It is a congruent 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, 4296 + ... + 16705.

It is an arithmetic number, because the mean of its divisors is an integer number (10490499).

Almost surely, 2^130311205 is an apocalyptic number.

It is an amenable number.

130311205 is a deficient number, since it is larger than the sum of its proper divisors (37536779).

130311205 is a wasteful number, since it uses less digits than its factorization.

130311205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21096.

The product of its (nonzero) digits is 90, while the sum is 16.

The square root of 130311205 is about 11415.3933353170. The cubic root of 130311205 is about 506.9836108958.

Adding to 130311205 its reverse (502113031), we get a palindrome (632424236).

The spelling of 130311205 in words is "one hundred thirty million, three hundred eleven thousand, two hundred five".