123234034465 has 4 divisors (see below), whose sum is σ = 147880841364. Its totient is φ = 98587227568.

The previous prime is 123234034463. The next prime is 123234034481. The reversal of 123234034465 is 564430432321.

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 56123505216 + 67110529249 = 236904^2 + 259057^2 .

It is a cyclic number.

It is not a de Polignac number, because 123234034465 - 2¹ = 123234034463 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123234034463) 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, 12323403442 + ... + 12323403451.

It is an arithmetic number, because the mean of its divisors is an integer number (36970210341).

Almost surely, 2^123234034465 is an apocalyptic number.

It is an amenable number.

123234034465 is a deficient number, since it is larger than the sum of its proper divisors (24646806899).

123234034465 is an equidigital number, since it uses as much as digits as its factorization.

123234034465 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24646806898.

The product of its (nonzero) digits is 207360, while the sum is 37.

Adding to 123234034465 its reverse (564430432321), we get a palindrome (687664466786).

The spelling of 123234034465 in words is "one hundred twenty-three billion, two hundred thirty-four million, thirty-four thousand, four hundred sixty-five".