234134034221 has 4 divisors (see below), whose sum is σ = 234144668352. Its totient is φ = 234123400092.

The previous prime is 234134034209. The next prime is 234134034229. The reversal of 234134034221 is 122430431432.

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 234134034221 - 2¹⁸ = 234133772077 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 (234134034229) 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, 5283971 + ... + 5328096.

It is an arithmetic number, because the mean of its divisors is an integer number (58536167088).

Almost surely, 2^234134034221 is an apocalyptic number.

It is an amenable number.

234134034221 is a deficient number, since it is larger than the sum of its proper divisors (10634131).

234134034221 is a wasteful number, since it uses less digits than its factorization.

234134034221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10634130.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 234134034221 its reverse (122430431432), we get a palindrome (356564465653).

The spelling of 234134034221 in words is "two hundred thirty-four billion, one hundred thirty-four million, thirty-four thousand, two hundred twenty-one".