123459395321 has 4 divisors (see below), whose sum is σ = 124431516672. Its totient is φ = 122487273972.

The previous prime is 123459395317. The next prime is 123459395357. The reversal of 123459395321 is 123593954321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123459395321 - 2² = 123459395317 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123459395621) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 486060485 + ... + 486060738.

It is an arithmetic number, because the mean of its divisors is an integer number (31107879168).

Almost surely, 2^123459395321 is an apocalyptic number.

It is an amenable number.

123459395321 is a deficient number, since it is larger than the sum of its proper divisors (972121351).

123459395321 is an equidigital number, since it uses as much as digits as its factorization.

123459395321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 972121350.

The product of its digits is 874800, while the sum is 47.

The spelling of 123459395321 in words is "one hundred twenty-three billion, four hundred fifty-nine million, three hundred ninety-five thousand, three hundred twenty-one".