130130021 has 8 divisors (see below), whose sum is σ = 155186304. Its totient is φ = 106690320.

The previous prime is 130129991. The next prime is 130130027. The reversal of 130130021 is 120031031.

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

It is a cyclic number.

It is not a de Polignac number, because 130130021 - 2¹⁸ = 129867877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130129984 and 130130011.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130130027) 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, 403970 + ... + 404291.

It is an arithmetic number, because the mean of its divisors is an integer number (19398288).

Almost surely, 2^130130021 is an apocalyptic number.

It is an amenable number.

130130021 is a deficient number, since it is larger than the sum of its proper divisors (25056283).

130130021 is an equidigital number, since it uses as much as digits as its factorization.

130130021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 808291.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 130130021 is about 11407.4546240605. The cubic root of 130130021 is about 506.7485328145.

Adding to 130130021 its reverse (120031031), we get a palindrome (250161052).

The spelling of 130130021 in words is "one hundred thirty million, one hundred thirty thousand, twenty-one".