123043465 has 4 divisors (see below), whose sum is σ = 147652164. Its totient is φ = 98434768.

The previous prime is 123043457. The next prime is 123043469. The reversal of 123043465 is 564340321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 564340321 = 4327 ⋅130423.

It can be written as a sum of positive squares in 2 ways, for example, as 20548089 + 102495376 = 4533^2 + 10124^2 .

It is a cyclic number.

It is not a de Polignac number, because 123043465 - 2³ = 123043457 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123043469) 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, 12304342 + ... + 12304351.

It is an arithmetic number, because the mean of its divisors is an integer number (36913041).

Almost surely, 2^123043465 is an apocalyptic number.

It is an amenable number.

123043465 is a deficient number, since it is larger than the sum of its proper divisors (24608699).

123043465 is an equidigital number, since it uses as much as digits as its factorization.

123043465 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24608698.

The product of its (nonzero) digits is 8640, while the sum is 28.

The square root of 123043465 is about 11092.4958868597. The cubic root of 123043465 is about 497.3775562915.

Adding to 123043465 its reverse (564340321), we get a palindrome (687383786).

The spelling of 123043465 in words is "one hundred twenty-three million, forty-three thousand, four hundred sixty-five".