123221255043 has 8 divisors (see below), whose sum is σ = 164476151488. Its totient is φ = 82056930984.

The previous prime is 123221255039. The next prime is 123221255071. The reversal of 123221255043 is 340552122321.

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

It is not a de Polignac number, because 123221255043 - 2² = 123221255039 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 123221255043.

It is not an unprimeable number, because it can be changed into a prime (123221255083) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 22639921 + ... + 22645362.

It is an arithmetic number, because the mean of its divisors is an integer number (20559518936).

Almost surely, 2^123221255043 is an apocalyptic number.

123221255043 is a deficient number, since it is larger than the sum of its proper divisors (41254896445).

123221255043 is an equidigital number, since it uses as much as digits as its factorization.

123221255043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45286193.

The product of its (nonzero) digits is 14400, while the sum is 30.

Adding to 123221255043 its reverse (340552122321), we get a palindrome (463773377364).

The spelling of 123221255043 in words is "one hundred twenty-three billion, two hundred twenty-one million, two hundred fifty-five thousand, forty-three".