123353185343 has 4 divisors (see below), whose sum is σ = 123355437240. Its totient is φ = 123350933448.

The previous prime is 123353185321. The next prime is 123353185349. The reversal of 123353185343 is 343581353321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 343581353321 = 3301 ⋅104084021.

It is a cyclic number.

It is not a de Polignac number, because 123353185343 - 2¹⁰ = 123353184319 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 123353185343.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123353185349) 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, 1041680 + ... + 1154037.

It is an arithmetic number, because the mean of its divisors is an integer number (30838859310).

Almost surely, 2^123353185343 is an apocalyptic number.

123353185343 is a deficient number, since it is larger than the sum of its proper divisors (2251897).

123353185343 is an equidigital number, since it uses as much as digits as its factorization.

123353185343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2251896.

The product of its digits is 388800, while the sum is 41.

The spelling of 123353185343 in words is "one hundred twenty-three billion, three hundred fifty-three million, one hundred eighty-five thousand, three hundred forty-three".