130021003 has 8 divisors (see below), whose sum is σ = 149039072. Its totient is φ = 111113856.

The previous prime is 130020983. The next prime is 130021033. The reversal of 130021003 is 300120031.

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

It is not a de Polignac number, because 130021003 - 2¹⁷ = 129889931 is a prime.

It is a super-2 number, since 2×130021003² = 33810922442252018, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (130021033) 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, 25200 + ... + 29917.

It is an arithmetic number, because the mean of its divisors is an integer number (18629884).

Almost surely, 2^130021003 is an apocalyptic number.

130021003 is a deficient number, since it is larger than the sum of its proper divisors (19018069).

130021003 is an equidigital number, since it uses as much as digits as its factorization.

130021003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55461.

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 130021003 is about 11402.6752562721. The cubic root of 130021003 is about 506.6069817064.

Adding to 130021003 its reverse (300120031), we get a palindrome (430141034).

The spelling of 130021003 in words is "one hundred thirty million, twenty-one thousand, three".