130332021 has 4 divisors (see below), whose sum is σ = 173776032. Its totient is φ = 86888012.

The previous prime is 130331983. The next prime is 130332043. The reversal of 130332021 is 120233031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 130332021 - 2¹⁴ = 130315637 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130332221) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 21722001 + ... + 21722006.

It is an arithmetic number, because the mean of its divisors is an integer number (43444008).

Almost surely, 2^130332021 is an apocalyptic number.

It is an amenable number.

130332021 is a deficient number, since it is larger than the sum of its proper divisors (43444011).

130332021 is an equidigital number, since it uses as much as digits as its factorization.

130332021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 43444010.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 130332021 is about 11416.3050502341. The cubic root of 130332021 is about 507.0106047601.

Adding to 130332021 its reverse (120233031), we get a palindrome (250565052).

The spelling of 130332021 in words is "one hundred thirty million, three hundred thirty-two thousand, twenty-one".