123201321224 has 16 divisors (see below), whose sum is σ = 231013951020. Its totient is φ = 61597600960.

The previous prime is 123201321179. The next prime is 123201321253. The reversal of 123201321224 is 422123102321.

It can be written as a sum of positive squares in 2 ways, for example, as 120188409124 + 3012912100 = 346682^2 + 54890^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 123201321224.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 206567 + ... + 537654.

Almost surely, 2^123201321224 is an apocalyptic number.

It is an amenable number.

123201321224 is a deficient number, since it is larger than the sum of its proper divisors (107812629796).

123201321224 is a wasteful number, since it uses less digits than its factorization.

123201321224 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 764920 (or 764916 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 123201321224 its reverse (422123102321), we get a palindrome (545324423545).

The spelling of 123201321224 in words is "one hundred twenty-three billion, two hundred one million, three hundred twenty-one thousand, two hundred twenty-four".