130818020 has 24 divisors (see below), whose sum is σ = 286663104. Its totient is φ = 50051936.

The previous prime is 130818019. The next prime is 130818029. The reversal of 130818020 is 20818031.

It is a super-2 number, since 2×130818020² = 34226708713440800, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is not an unprimeable number, because it can be changed into a prime (130818029) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 141734 + ... + 142653.

It is an arithmetic number, because the mean of its divisors is an integer number (11944296).

Almost surely, 2^130818020 is an apocalyptic number.

130818020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

130818020 is an abundant number, since it is smaller than the sum of its proper divisors (155845084).

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

130818020 is a wasteful number, since it uses less digits than its factorization.

130818020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 284419 (or 284417 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 23.

The square root of 130818020 is about 11437.5705462305. The cubic root of 130818020 is about 507.6400254254.

The spelling of 130818020 in words is "one hundred thirty million, eight hundred eighteen thousand, twenty".