234440343331 has 4 divisors (see below), whose sum is σ = 234917819064. Its totient is φ = 233962867600.

The previous prime is 234440343311. The next prime is 234440343353. The reversal of 234440343331 is 133343044432.

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

It is a cyclic number.

It is not a de Polignac number, because 234440343331 - 2²¹ = 234438246179 is a prime.

It is a super-2 number, since 2×234440343331² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (234440343311) 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, 238737130 + ... + 238738111.

It is an arithmetic number, because the mean of its divisors is an integer number (58729454766).

Almost surely, 2^234440343331 is an apocalyptic number.

234440343331 is a deficient number, since it is larger than the sum of its proper divisors (477475733).

234440343331 is an equidigital number, since it uses as much as digits as its factorization.

234440343331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 477475732.

The product of its (nonzero) digits is 124416, while the sum is 34.

Adding to 234440343331 its reverse (133343044432), we get a palindrome (367783387763).

The spelling of 234440343331 in words is "two hundred thirty-four billion, four hundred forty million, three hundred forty-three thousand, three hundred thirty-one".