130800021 has 8 divisors (see below), whose sum is σ = 190254624. Its totient is φ = 79272720.

The previous prime is 130799993. The next prime is 130800029. The reversal of 130800021 is 120008031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 130800021 - 2⁶ = 130799957 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130800029) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1981786 + ... + 1981851.

It is an arithmetic number, because the mean of its divisors is an integer number (23781828).

Almost surely, 2^130800021 is an apocalyptic number.

130800021 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

130800021 is a deficient number, since it is larger than the sum of its proper divisors (59454603).

130800021 is a wasteful number, since it uses less digits than its factorization.

130800021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3963651.

The product of its (nonzero) digits is 48, while the sum is 15.

The square root of 130800021 is about 11436.7836824870. The cubic root of 130800021 is about 507.6167426190.

Adding to 130800021 its reverse (120008031), we get a palindrome (250808052).

The spelling of 130800021 in words is "one hundred thirty million, eight hundred thousand, twenty-one".