234134224021 has 4 divisors (see below), whose sum is σ = 247906825452. Its totient is φ = 220361622592.

The previous prime is 234134224007. The next prime is 234134224099. The reversal of 234134224021 is 120422431432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 142634628900 + 91499595121 = 377670^2 + 302489^2 .

It is a cyclic number.

It is not a de Polignac number, because 234134224021 - 2¹⁷ = 234134092949 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 (234134224321) 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, 6886300690 + ... + 6886300723.

It is an arithmetic number, because the mean of its divisors is an integer number (61976706363).

Almost surely, 2^234134224021 is an apocalyptic number.

It is an amenable number.

234134224021 is a deficient number, since it is larger than the sum of its proper divisors (13772601431).

234134224021 is a wasteful number, since it uses less digits than its factorization.

234134224021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13772601430.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 234134224021 its reverse (120422431432), we get a palindrome (354556655453).

The spelling of 234134224021 in words is "two hundred thirty-four billion, one hundred thirty-four million, two hundred twenty-four thousand, twenty-one".