235330021 has 4 divisors (see below), whose sum is σ = 242921344. Its totient is φ = 227738700.

The previous prime is 235330003. The next prime is 235330049. The reversal of 235330021 is 120033532.

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 235330021 - 2²⁵ = 201775589 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 (235330001) 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, 3795615 + ... + 3795676.

It is an arithmetic number, because the mean of its divisors is an integer number (60730336).

Almost surely, 2^235330021 is an apocalyptic number.

It is an amenable number.

235330021 is a deficient number, since it is larger than the sum of its proper divisors (7591323).

235330021 is an equidigital number, since it uses as much as digits as its factorization.

235330021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7591322.

The product of its (nonzero) digits is 540, while the sum is 19.

The square root of 235330021 is about 15340.4700384310. The cubic root of 235330021 is about 617.3893181289.

Adding to 235330021 its reverse (120033532), we get a palindrome (355363553).

The spelling of 235330021 in words is "two hundred thirty-five million, three hundred thirty thousand, twenty-one".