123220220313321 has 96 divisors (see below), whose sum is σ = 182573483728896. Its totient is φ = 80060762880000.

The previous prime is 123220220313287. The next prime is 123220220313341. The reversal of 123220220313321 is 123313022022321.

123220220313321 is a `hidden beast` number, since 1 + 2 + 3 + 2 + 2 + 0 + 2 + 20 + 313 + 321 = 666.

It is not a de Polignac number, because 123220220313321 - 2³¹ = 123218072829673 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123220220313341) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 40254889131 + ... + 40254892191.

It is an arithmetic number, because the mean of its divisors is an integer number (1901807122176).

Almost surely, 2^{123220220313321} is an apocalyptic number.

It is an amenable number.

123220220313321 is a deficient number, since it is larger than the sum of its proper divisors (59353263415575).

123220220313321 is a wasteful number, since it uses less digits than its factorization.

123220220313321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4903 (or 4900 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 123220220313321 its reverse (123313022022321), we get a palindrome (246533242335642).

The spelling of 123220220313321 in words is "one hundred twenty-three trillion, two hundred twenty billion, two hundred twenty million, three hundred thirteen thousand, three hundred twenty-one".