130311405 has 48 divisors (see below), whose sum is σ = 271739520. Its totient is φ = 56433024.

The previous prime is 130311403. The next prime is 130311421. The reversal of 130311405 is 504113031.

It is not a de Polignac number, because 130311405 - 2¹ = 130311403 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130311403) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 4902 + ... + 16871.

It is an arithmetic number, because the mean of its divisors is an integer number (5661240).

Almost surely, 2^130311405 is an apocalyptic number.

130311405 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

130311405 is an abundant number, since it is smaller than the sum of its proper divisors (141428115).

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

130311405 is a wasteful number, since it uses less digits than its factorization.

130311405 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21810 (or 21807 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 18.

The square root of 130311405 is about 11415.4020954148. The cubic root of 130311405 is about 506.9838702664.

Adding to 130311405 its reverse (504113031), we get a palindrome (634424436).

The spelling of 130311405 in words is "one hundred thirty million, three hundred eleven thousand, four hundred five".