123463243565 has 8 divisors (see below), whose sum is σ = 148350582648. Its totient is φ = 98640801280.

The previous prime is 123463243559. The next prime is 123463243567. The reversal of 123463243565 is 565342364321.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3871079524 + 119592164041 = 62218^2 + 345821^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 123463243565 - 2¹⁶ = 123463178029 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 (123463243567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 16220012 + ... + 16227621.

It is an arithmetic number, because the mean of its divisors is an integer number (18543822831).

Almost surely, 2^123463243565 is an apocalyptic number.

It is an amenable number.

123463243565 is a deficient number, since it is larger than the sum of its proper divisors (24887339083).

123463243565 is an equidigital number, since it uses as much as digits as its factorization.

123463243565 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32448399.

The product of its digits is 1555200, while the sum is 44.

The spelling of 123463243565 in words is "one hundred twenty-three billion, four hundred sixty-three million, two hundred forty-three thousand, five hundred sixty-five".