234431341021 has 4 divisors (see below), whose sum is σ = 234619037500. Its totient is φ = 234243644544.

The previous prime is 234431341019. The next prime is 234431341043. The reversal of 234431341021 is 120143134432.

It is a happy number.

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 188930184921 + 45501156100 = 434661^2 + 213310^2 .

It is a cyclic number.

It is not a de Polignac number, because 234431341021 - 2¹ = 234431341019 is a prime.

It is a super-3 number, since 3×234431341021³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (234432341021) 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, 93846366 + ... + 93848863.

It is an arithmetic number, because the mean of its divisors is an integer number (58654759375).

Almost surely, 2^234431341021 is an apocalyptic number.

It is an amenable number.

234431341021 is a deficient number, since it is larger than the sum of its proper divisors (187696479).

234431341021 is a wasteful number, since it uses less digits than its factorization.

234431341021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 187696478.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 234431341021 its reverse (120143134432), we get a palindrome (354574475453).

The spelling of 234431341021 in words is "two hundred thirty-four billion, four hundred thirty-one million, three hundred forty-one thousand, twenty-one".