130831120 has 80 divisors (see below), whose sum is σ = 349227648. Its totient is φ = 44651520.

The previous prime is 130831117. The next prime is 130831139. The reversal of 130831120 is 21138031.

It is a tau number, because it is divible by the number of its divisors (80).

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, 171540 + ... + 172300.

Almost surely, 2^130831120 is an apocalyptic number.

130831120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 130831120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174613824).

130831120 is an abundant number, since it is smaller than the sum of its proper divisors (218396528).

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

130831120 is a wasteful number, since it uses less digits than its factorization.

130831120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1088 (or 1082 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 19.

The square root of 130831120 is about 11438.1432059579. The cubic root of 130831120 is about 507.6569697331.

Adding to 130831120 its reverse (21138031), we get a palindrome (151969151).

The spelling of 130831120 in words is "one hundred thirty million, eight hundred thirty-one thousand, one hundred twenty".