234433530421 has 4 divisors (see below), whose sum is σ = 234435468832. Its totient is φ = 234431592012.

The previous prime is 234433530413. The next prime is 234433530449. The reversal of 234433530421 is 124035334432.

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 234433530421 - 2³ = 234433530413 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 (234433530521) 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, 774795 + ... + 1034008.

It is an arithmetic number, because the mean of its divisors is an integer number (58608867208).

Almost surely, 2^234433530421 is an apocalyptic number.

It is an amenable number.

234433530421 is a deficient number, since it is larger than the sum of its proper divisors (1938411).

234433530421 is a wasteful number, since it uses less digits than its factorization.

234433530421 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1938410.

The product of its (nonzero) digits is 103680, while the sum is 34.

Adding to 234433530421 its reverse (124035334432), we get a palindrome (358468864853).

The spelling of 234433530421 in words is "two hundred thirty-four billion, four hundred thirty-three million, five hundred thirty thousand, four hundred twenty-one".