123235221049 has 8 divisors (see below), whose sum is σ = 129231079560. Its totient is φ = 117355787136.

The previous prime is 123235221007. The next prime is 123235221077. The reversal of 123235221049 is 940122532321.

It can be written as a sum of positive squares in 4 ways, for example, as 598683024 + 122636538025 = 24468^2 + 350195^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 123235221049 - 2¹¹ = 123235219001 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123235221079) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29103982 + ... + 29108215.

It is an arithmetic number, because the mean of its divisors is an integer number (16153884945).

Almost surely, 2^123235221049 is an apocalyptic number.

It is an amenable number.

123235221049 is a deficient number, since it is larger than the sum of its proper divisors (5995858511).

123235221049 is an equidigital number, since it uses as much as digits as its factorization.

123235221049 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 58212299.

The product of its (nonzero) digits is 25920, while the sum is 34.

The spelling of 123235221049 in words is "one hundred twenty-three billion, two hundred thirty-five million, two hundred twenty-one thousand, forty-nine".