130032021 has 16 divisors (see below), whose sum is σ = 198563328. Its totient is φ = 74146800.

The previous prime is 130031983. The next prime is 130032037. The reversal of 130032021 is 120230031.

It is a happy number.

It is not a de Polignac number, because 130032021 - 2⁹ = 130031509 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 130031988 and 130032006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130032061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4006 + ... + 16616.

It is an arithmetic number, because the mean of its divisors is an integer number (12410208).

Almost surely, 2^130032021 is an apocalyptic number.

It is an amenable number.

130032021 is a deficient number, since it is larger than the sum of its proper divisors (68531307).

130032021 is a wasteful number, since it uses less digits than its factorization.

130032021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13112.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 130032021 is about 11403.1583782740. The cubic root of 130032021 is about 506.6212912869.

Adding to 130032021 its reverse (120230031), we get a palindrome (250262052).

The spelling of 130032021 in words is "one hundred thirty million, thirty-two thousand, twenty-one".