330432340021 has 4 divisors (see below), whose sum is σ = 377636960032. Its totient is φ = 283227720012.

The previous prime is 330432339977. The next prime is 330432340039. The reversal of 330432340021 is 120043234033.

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, and also an emirpimes, since its reverse is a distinct semiprime: 120043234033 = 219971 ⋅545723.

It is a cyclic number.

It is not a de Polignac number, because 330432340021 - 2²⁷ = 330298122293 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (330432340061) 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, 23602309995 + ... + 23602310008.

It is an arithmetic number, because the mean of its divisors is an integer number (94409240008).

Almost surely, 2^330432340021 is an apocalyptic number.

It is an amenable number.

330432340021 is a deficient number, since it is larger than the sum of its proper divisors (47204620011).

330432340021 is an equidigital number, since it uses as much as digits as its factorization.

330432340021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 47204620010.

The product of its (nonzero) digits is 5184, while the sum is 25.

Adding to 330432340021 its reverse (120043234033), we get a palindrome (450475574054).

The spelling of 330432340021 in words is "three hundred thirty billion, four hundred thirty-two million, three hundred forty thousand, twenty-one".