123221220323 has 16 divisors (see below), whose sum is σ = 124975872000. Its totient is φ = 121477270272.

The previous prime is 123221220259. The next prime is 123221220337. The reversal of 123221220323 is 323022122321.

It is a cyclic number.

It is not a de Polignac number, because 123221220323 - 2⁶ = 123221220259 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123221220823) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 50109068 + ... + 50111526.

It is an arithmetic number, because the mean of its divisors is an integer number (7810992000).

Almost surely, 2^123221220323 is an apocalyptic number.

123221220323 is a deficient number, since it is larger than the sum of its proper divisors (1754651677).

123221220323 is a wasteful number, since it uses less digits than its factorization.

123221220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4354.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 123221220323 its reverse (323022122321), we get a palindrome (446243342644).

The spelling of 123221220323 in words is "one hundred twenty-three billion, two hundred twenty-one million, two hundred twenty thousand, three hundred twenty-three".