130205316820 has 12 divisors (see below), whose sum is σ = 273431165364. Its totient is φ = 52082126720.

The previous prime is 130205316817. The next prime is 130205316887. The reversal of 130205316820 is 28613502031.

It can be written as a sum of positive squares in 2 ways, for example, as 95859590544 + 34345726276 = 309612^2 + 185326^2 .

It is a super-3 number, since 3×130205316820³ (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3255132901 + ... + 3255132940.

It is an arithmetic number, because the mean of its divisors is an integer number (22785930447).

Almost surely, 2^130205316820 is an apocalyptic number.

130205316820 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130205316820 is an abundant number, since it is smaller than the sum of its proper divisors (143225848544).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

130205316820 is a wasteful number, since it uses less digits than its factorization.

130205316820 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6510265850 (or 6510265848 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 31.

Adding to 130205316820 its reverse (28613502031), we get a palindrome (158818818851).

The spelling of 130205316820 in words is "one hundred thirty billion, two hundred five million, three hundred sixteen thousand, eight hundred twenty".